2026-05-10T15:03:39Z https://jurnal.polinema.ac.id/index.php/elposys/oai

oai:ojs2.jurnal.polinema.ac.id:article/540 2023-05-17T12:49:33Z elposys:ART

oai:ojs2.jurnal.polinema.ac.id:article/604 2023-02-15T13:42:49Z elposys:ART

Metode Jaya Sebagai Penentuan Posisi dan Ukuran Besaran Kapasitas Distribution Generation Pada 117 Bus Mas Ahmad Baihaqi Eva Kurnia Yulyawan metode optimasi JAYA, Distributed Generation, sistem distribusi 20kV Penggunaan Metode JAYA ini merupakan usulan pada penelitian yang di lakukan, sebagai pilihan metode untuk optimasi penentuan dimana nantinya Distributed Generation (DG) di letakkan selain penentuan lokasi juga akan di tentukan besarannya juga, pengaplikasian ini dipakai untuk sistem distribusi 20kV 117 bus dengan saluran sepanjang 59,65 km, bertujuan untuk mengurangi rugi rugi daya juga sebagai penentuan besarnya kapasitas Distributed Generation (DG) yang akan dipasang nantinya. Algoritma ini telah berhasil menentukan besar kapasitas Distributed Generation (DG) dan pada titik dimana posisi paling tepat pada 117 bus di penyulang pujon. Politeknik Negeri Malang 2022-02-25 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.polinema.ac.id/index.php/elposys/article/view/604 10.33795/elposys.v9i1.604 Elposys: Jurnal Sistem Kelistrikan; Vol. 9 No. 1 (2022): ELPOSYS vol.9 no.1 (2022); 1-5 2407-2338 2407-232X eng https://jurnal.polinema.ac.id/index.php/elposys/article/view/604/341 Copyright (c) 2022 Elposys: Jurnal Sistem Kelistrikan https://creativecommons.org/licenses/by-nc/4.0

oai:ojs2.jurnal.polinema.ac.id:article/605 2023-02-15T13:42:49Z elposys:ART

Uji Kemampuan RPM Motor DC Permanen Baldor dengan Sumber Daya Solar Cell Monocristallin 50WP Mas Ahmad Baihaqi Eva Kurnia Yulyawan motor dc magnet permanen, Solar cell 50 wp, energi alternatif, dan uji kecepatan motor DC Memanfaatkan energi alternatif cahaya matahari sebagai salah satu solusi untuk mengurangi pemakaian energi fosil yang tidak bisa di perbarui, Solar cell 50 wp sebagai sumber daya untuk menguji kecepatan serta kekuatan motor DC magnet permanen baldor, pengujian dilakukan dengan metode memberi beban semakin bertambah, dengan pengujian ini di harapkan RPM sebelum ada beban maupun semakin bertambah beban kekuatan motor dc permanen baldor tidak mengalami drop RPM, dengan harapan hasil uji nanti bisa dimanfaatkan untuk pengembangan penelitian selanjutnya pada pengembangan transportasi yakni mobil listrik tenaga surya dengan modul photovoltaic, motor dc magnet permanen baldor. Politeknik Negeri Malang 2023-02-15 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.polinema.ac.id/index.php/elposys/article/view/605 10.33795/elposys.v9i1.605 Elposys: Jurnal Sistem Kelistrikan; Vol. 9 No. 1 (2022): ELPOSYS vol.9 no.1 (2022); 6-11 2407-2338 2407-232X eng https://jurnal.polinema.ac.id/index.php/elposys/article/view/605/342 Copyright (c) 2023 Elposys: Jurnal Sistem Kelistrikan https://creativecommons.org/licenses/by-nc/4.0

oai:ojs2.jurnal.polinema.ac.id:article/606 2023-02-15T13:42:49Z elposys:ART

Perancangan Mesin Bor Otomatis Menggunakan PPI 8255A Sebagai Interface Eva Kurnia Yulyawan Mas Ahmad Baihaqi motor stepper, ppi 8255A , bor PCB, dan pascal Stepper motor adalah salah satu yang sesuai dengan permintaan/permintaan diatas, karena stepper motor memungkinkan sinyal digital dikonversikan secara langsung kedalam suatu gerakan posisi (perubahan sudut).Dalam Penelitian ini dilakukan pengontrolan untuk stepper motor dengan menggunakan Personal Computer sebagai pengontrol yang di interfacekan dengan menggunakan PPI 8255A pada sistem penggerak mesin bor PCB. PPI 8255A dalam sistem ini dibantu oleh beberapa komponen tambahan yaitu beberapa driver dan celenoid. Pada peralatan pengebor PCB ini terdapat 3 arah gerakan yaitu x,y,dan z. Gerakan x dilakukan oleh motor stepper I, gerakan y dilakukan oleh motor stepper II,sedangkan gerakan z dilakukan oleh selenoid, dengan hal-hal tersebut sehingga peralatan pengebor ini bisa bekerja. Politeknik Negeri Malang 2023-02-15 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.polinema.ac.id/index.php/elposys/article/view/606 10.33795/elposys.v9i1.606 Elposys: Jurnal Sistem Kelistrikan; Vol. 9 No. 1 (2022): ELPOSYS vol.9 no.1 (2022); 12-17 2407-2338 2407-232X eng https://jurnal.polinema.ac.id/index.php/elposys/article/view/606/343 Copyright (c) 2023 Elposys: Jurnal Sistem Kelistrikan https://creativecommons.org/licenses/by-nc/4.0

oai:ojs2.jurnal.polinema.ac.id:article/607 2023-02-15T13:42:49Z elposys:ART

Studi Evaluasi Pengetanahan Gardu Induk Dengan Adanya Perubahan Tegangan Sistem Dari 70 kV Menjadi 150 kV Eva Kurnia Yulyawan Mas Ahmad Baihaqi Sistem pengetanahan peralatan, tegangan langkah, tegangan sentuh, Transformator Pengetanahan peralatan pada Gardu Induk mempunyai peranan yang sangat penting karena menyangkut keamanan manusia dan peralatan. Salah satu peristiwa yang sering terjadi di Gardu Induk yaitu gangguan fasa ke tanah yang akan menyebabkan mengalirnya arus gangguan pada bagian peralatan dan ke piranti pentanahan. Hal ini akan menimbulkan gradien tegangan antara peralatan dengan peralatan, peralatan dengan tanah dan gradien tegangan pada permukaan tanah itu sendiri yang berbahaya bagi keselamatan manusia yang berada di area Gardu Induk. Sistem pengetanahan ini diharapkan akan memperoleh gradien tegangan yang merata (uniform) dalam semua bagian struktur dan peralatan, dan juga agar manusia yang berada di daerah instalasi itu berada pada potensial yang sama dan tidak berbahaya setiap waktu. Dengan adanya rencana perubahan kapasitas Transformator daya di Gardu Induk dari Transformator sistem 70 kV menjadi 150 kV, maka perlu adanya evaluasi kembali terhadap sistem pengetanahan peralatannya apakah masih memenuhi syarat-syarat teknis yaitu tingkat keamanan yang sesuai atau yang diizinkan bagi manusia ataupun peralatan di dalam suatu Gardu Induk. Politeknik Negeri Malang 2023-02-15 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.polinema.ac.id/index.php/elposys/article/view/607 10.33795/elposys.v9i1.607 Elposys: Jurnal Sistem Kelistrikan; Vol. 9 No. 1 (2022): ELPOSYS vol.9 no.1 (2022); 18-23 2407-2338 2407-232X eng https://jurnal.polinema.ac.id/index.php/elposys/article/view/607/344 Copyright (c) 2023 Elposys: Jurnal Sistem Kelistrikan https://creativecommons.org/licenses/by-nc/4.0

oai:ojs2.jurnal.polinema.ac.id:article/608 2023-02-15T13:42:49Z elposys:ART

Profil Tegangan Surja Petir pada Generator Impuls RLC Sebagai Simulasi Tegangan Lebih Kumala Mahda Habsari Hanifiyah Darna Fidya Amaral Hafizh Farhan Generator Impuls RLC, Surja Petir, Tegangan Lebih, Profil Tegangan, Tegangan Tinggi Gangguan tegangan lebih pada jaringan listrik umumnya disebabkan oleh dua macam tegangan transient yang berasal dari luar atau dari dalam sistem itu sendiri. Jenis gangguan dari luar ini biasanya disebabkan oleh sambaran petir. Gangguan tegangan lebih yang berasal dari petir dapat menjadi ancaman berbahaya bagi jaringan listrik, instalasi listrik dan peralatan listrik.. Tegangan impuls yang dibawa oleh petir memiliki amplitudo sangat besar. Pada skala laboratorium, tegangan impuls dapat dibangkitkan hingga 1000 kV. Gelombang tegangan tinggi impuls yang dihasilkan oleh generator impuls memiliki karakteristik durasi yang pendek antara mikro detik hingga beberapa puluh mikro detik. Perancangan simulasi pembangkitan tegangan tinggi impuls dengan rangkaian generator impuls RLC dilakukan dengan tujuan untuk menyimulasikan tegangan lebih yang berasal dari surja petir. Profil tegangan yang dihasilkan diamati dan dianalisa. Rangkaian generator impuls RLC disimulasikan dengan dua variasi tegangan keluaran yang berbeda, yaitu 1 kV dan 10 kV. Profil tegangan yang dihasilkan oleh generator impuls RLC dengan tegangan keluaran 1kV dan 10 kV memiliki bentuk yang mirip dengan profil tegangan generator impuls RLC yang ada pada standar IEC 61000-4-5. Hal ini menunjukkan bahwa rangkaian generator impuls RLC yang disimulasikan berhasil dijalankan sesuai standar. Politeknik Negeri Malang 2023-02-15 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.polinema.ac.id/index.php/elposys/article/view/608 10.33795/elposys.v9i1.608 Elposys: Jurnal Sistem Kelistrikan; Vol. 9 No. 1 (2022): ELPOSYS vol.9 no.1 (2022); 24-27 2407-2338 2407-232X eng https://jurnal.polinema.ac.id/index.php/elposys/article/view/608/345 Copyright (c) 2023 Elposys: Jurnal Sistem Kelistrikan https://creativecommons.org/licenses/by-nc/4.0

oai:ojs2.jurnal.polinema.ac.id:article/609 2023-05-17T07:17:23Z elposys:ART

Rancang Bangun Alat Deteksi Sag Tegangan Menggunakan Sistem Data Logger Pratama, Arizal Maulana Ronilaya, Ferdian Kusumaningtyas, Ajeng Bening Wibowo, Sapto – voltage sag, voltage sensor, rms voltage, data logger -This research discusses the design and manufacture of a voltage sag detection device using a data logger system. Voltage sag detection device to detect the presence of voltage sag which is one of the power quality problems in industrial electrical systems. Voltage sag can cause disturbances in electronic components that are sensitive to changes in voltage values. In this device, the voltage sag is detected using a voltage sensor by reading the RMS voltage from the PLN 220V AC source, then it is converted into a digital signal. The digital signal is sent to the ESP32 module to be processed and outputs a voltage value which is then displayed on the LCD Display. The voltage value data collection is carried out every <10ms and the data taken is the voltage value <90% of the rms voltage. The data taken is then saved to a micro SD card and displayed on the LCD Display. Several tests were carried out to ensure the performance of the voltage sag detector as designed. By switching the 110 / 220VAC transformer connected to the voltage sensor for 10 seconds, 12 seconds and 17 seconds. Based on these tests, the voltage sag detector can read and store the voltage sag data when the voltage read is below 90% of the rms voltage. Politeknik Negeri Malang 2023-05-09 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.polinema.ac.id/index.php/elposys/article/view/609 10.33795/elposys.v8i1.609 Elposys: Jurnal Sistem Kelistrikan; Vol. 8 No. 1 (2021): ELPOSYS vol.8 no.1 (2021); 1-5 2407-2338 2407-232X eng https://jurnal.polinema.ac.id/index.php/elposys/article/view/609/346 Copyright (c) 2021 Elposys: Jurnal Sistem Kelistrikan https://creativecommons.org/licenses/by-nc/4.0

oai:ojs2.jurnal.polinema.ac.id:article/612 2023-07-27T00:39:51Z elposys:ART

Studi Penambahan OCR dan GFR Gardu Hubung Gondol untuk Mengurangi Gangguan Meluas Penyulang Banyupoh Asfari Hariz Santoso Masramdhani Saputra Rachmat Sutjipto Banyupoh Feeder, Substasion, Coordination, OCR, GFR At the Banyupoh Feeder there is a Gondol Hubung Substation, which has 2 outgoings, the first line goes to the Banyuwedang Feeder and the second line goes to Penyabangan. However, because there is no protection on the outgoing side, if there is a disturbance in the first section on one of the outgoing sides, it will cause 1 feeder with a total of 49 transformers to experience a blackout. To overcome this condition, it is necessary to add relays at the substation. After the addition of relays at the substation, the impedance and short-circuit current are recalculated which can be used to determine the timing of the OCR and GFR relays at the new substation for each outgoing. After setting the protection relay on the outgoing side of the substation, the outage area due to interference can be minimized. When section 1 of the Banyuwedang Feeder is disturbed, the relay on the outgoing Gondol Substation will work so that the Energy Not Served (ENS) which was previously 40.008 kWh becomes 20.511 kWh. If section 1 of the Feeding Feeder is disturbed, then the relay on the outgoing Substation Hubung Gondol will work so that the ENS which was previously 40.008 kWh becomes 19,497 kWh, so that the amount of energy that is not channeled is reduced by 50%  and this makes the service better. Politeknik Negeri Malang 2022-06-29 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.polinema.ac.id/index.php/elposys/article/view/612 10.33795/elposys.v9i2.612 Elposys: Jurnal Sistem Kelistrikan; Vol. 9 No. 2 (2022): ELPOSYS Vol. 9 No. 2 (2022); 28-33 2407-2338 2407-232X eng https://jurnal.polinema.ac.id/index.php/elposys/article/view/612/348 Copyright (c) 2022 Elposys: Jurnal Sistem Kelistrikan https://creativecommons.org/licenses/by-nc/4.0

oai:ojs2.jurnal.polinema.ac.id:article/613 2023-07-27T00:41:42Z elposys:ART

Otomatisasi Mesin Gergaji Kayu Berbasis PLC Tresna Umar Syamsuri Mohammad Noor Hidayat Harrij Mukti K. Rohmanita Duanaputri saw, wood, HMI The timber industry in the process of cutting is done several types of sawing machine that has been designed in accordance with the needs of use facilitatein the process of cutting. Besides the saw machine simplifythe work given the limited ability of the power human beings either in the form of materials to be cut and safety work of employees. If the company is just a racket manpower is very limited, so to increase that efficiency desirable will be difficult to achieve, therefore required appropriate technology to help improve the eficiency. Technology that can help is to use shawmill machine automatically. In the process of sawing there are several types of sawmill such as: disc saw, bandsaw, in this case the writer uses bandsaw, adjusted with observation data with the power of 22 Kw saws and at the train with power of 1.5Kw. In the manufacture of this control the autor uses the HMI program in the process of controlling the engine from a distance, and operates it. Inside the HMI can be seen on a running machine and a machine that is a trouble. Politeknik Negeri Malang 2022-06-29 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.polinema.ac.id/index.php/elposys/article/view/613 10.33795/elposys.v9i2.613 Elposys: Jurnal Sistem Kelistrikan; Vol. 9 No. 2 (2022): ELPOSYS Vol. 9 No. 2 (2022); 34-39 2407-2338 2407-232X eng https://jurnal.polinema.ac.id/index.php/elposys/article/view/613/347 Copyright (c) 2022 Elposys: Jurnal Sistem Kelistrikan https://creativecommons.org/licenses/by-nc/4.0

oai:ojs2.jurnal.polinema.ac.id:article/614 2023-07-27T00:46:36Z elposys:ART

Analisis Pengaruh Harmonisa Terhadap Losses Transformator 500kVA Rachmat Sutjipto Wijaya Kusuma Kemal Zulfianta harmonics, transformers, neutral currents, losses, derating With the non-linear load at the State Polytechnic of Malang, it has an impact on the emergence of harmonics and the appearance of currents in the neutral wire, rising temperatures in conductors and losses in transformers.In this study, several THD analyzes were carried out in accordance with the IEEE 519-1992, including neutral current analysis, losses analysis before and after being affected by harmonics, derating analysis and alternative mitigation methods to reduce these harmonic levels. Based on observational data on 500kVA transformers at UPT PP Polinema, it is known that the highest THDi current is 14.5% and exceeds the IEEE 519-1992 standard (12%). As for the THD voltage, the harmonic is 1.87% and is below the standard (5%). Based on the analysis results, it is known that the value of losses from the neutral current is 0.096 kW. It is also known that the total loss is 1.24kW (the PCu loss is 1.2kW and the PFe loss is 0.04 kW. Based on the SPLN 50 standard in 1997, the total allowable losses are 6.6 kW and 7.84 kW after being affected by harmonics, so the total loss of the measurement results is below the standard. From the analysis, it is also known that the derating will occurs in due to harmonics is 71.6 kVA or 14.32% of the transformer capacity. So to reduce the amount of THD current a mitigation is needed in the form of installing a filter that is used to suppress harmonic currents to meet existing standards. Politeknik Negeri Malang 2022-06-29 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.polinema.ac.id/index.php/elposys/article/view/614 10.33795/elposys.v9i2.614 Elposys: Jurnal Sistem Kelistrikan; Vol. 9 No. 2 (2022): ELPOSYS Vol. 9 No. 2 (2022); 40-45 2407-2338 2407-232X eng https://jurnal.polinema.ac.id/index.php/elposys/article/view/614/349 Copyright (c) 2022 Elposys: Jurnal Sistem Kelistrikan https://creativecommons.org/licenses/by-nc/4.0

oai:ojs2.jurnal.polinema.ac.id:article/615 2023-07-27T00:53:18Z elposys:ART

Analisis Penggunaan Energi Listrik di Gedung Instalasi Bedah Sentral dan Perawatan Intensif Slamet Nurhadi Heri Sungkowo Nunun Setyo Nadia Putri Waluyo Jati Hospital, increase energy efficiency, Energy Consumption Intensity (IKE), Initial Energy Audit (AEA) Energy audit is a technique for calculating Energy Consumption Intensity (IKE) and aims to determine the energy use profile of a building and seek efforts to increase energy efficiency without reducing the comfort level of the building. The analytical method used is to make observations at Waluyo Jati Hospital by measuring the building area and ensuring appropriate lighting. Based on the Initial Energy Audit (AEA) which has been calculated and measured, the value of the intensity of energy has not met the standard because it is below the IKE standard for hospitals, which is 32.90617486 kWh/m2 on account calculations and 31.51399876 kWh /m2 on measurements that have been made, while the hospital IKE standard is 380 kWh/m2. The lighting system in the building still does not meet the standard of lighting strength according to the Regulation of the Minister of Health of the Republic of Indonesia No. 7 of 2019 concerning hospital environmental health. And for the lighting system it is not optimal and efficient, where the power consumption before repair according to the calculation is 4343.04 kWh, while after repair it becomes 4181.76 kWh / month 4343.04 kWh. The way to make energy use more efficient is to utilize natural light from the sun and change lamps and install energy-saving stickers in every corner of the room in the Central Surgical Installation and Intensive Care building at Waluyo Jati Kraksaan Hospital Politeknik Negeri Malang 2022-06-29 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/vnd.openxmlformats-officedocument.wordprocessingml.document https://jurnal.polinema.ac.id/index.php/elposys/article/view/615 10.33795/elposys.v9i2.615 Elposys: Jurnal Sistem Kelistrikan; Vol. 9 No. 2 (2022): ELPOSYS Vol. 9 No. 2 (2022); 46-51 2407-2338 2407-232X eng https://jurnal.polinema.ac.id/index.php/elposys/article/view/615/351 Copyright (c) 2022 Elposys: Jurnal Sistem Kelistrikan https://creativecommons.org/licenses/by-nc/4.0

oai:ojs2.jurnal.polinema.ac.id:article/616 2023-07-27T00:54:50Z elposys:ART

Perencanaan Instalasi Penangkal Petir Pada Bangunan Industri Furniture Sukamdi Sri Wahyuni Dali Chandra Wiharya Abdu Alimil Asror External Lightning Protection, Conventional (Franklin), Electrostatic (E.f Lightning In planning external protection systems, the methods that are widely used are conventional and electrostatic lightning rod methods, therefore to study further, the results of observations that have been made to the industry there is still no lightning rod system so the author will try to plan and compare the plans of the two types of rods. lightning rods are Conventional ( Franklin ) and Electrostatic ( EF Lightning Protection System ) lightning rods in terms of protection, technical, economical, advantages and disadvantages. The research and observation methods were carried out in the furniture industry area of PT. Marufuji Kenzai Indonesia, with data collection techniques through direct observation, interviews, and literature studies, so that the building plan data (height, width and length of the building) are obtained and the 2020 thunder day data (IKL 238) then the data obtained is used to calculate the parameters in planning the installation of lightning rods according to the standards of SNI 03-7015-2004 and PUIPP. So that the results obtained for planning the conventional method ( Franklin ) with the placement of air terminations using the rolling ball method obtained 22 finials installed with buildings that can withstand currents of up to 160.1 kA and for the electrostatic method ( EF Lightning Protection System ) with 1 finial the building can withstand currents up to 25,891 kA, and if it exceeds this value a lightning rod will be caught. Politeknik Negeri Malang 2022-10-28 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.polinema.ac.id/index.php/elposys/article/view/616 10.33795/elposys.v9i2.616 Elposys: Jurnal Sistem Kelistrikan; Vol. 9 No. 2 (2022): ELPOSYS Vol. 9 No. 2 (2022); 52-57 2407-2338 2407-232X eng https://jurnal.polinema.ac.id/index.php/elposys/article/view/616/352 Copyright (c) 2022 Elposys: Jurnal Sistem Kelistrikan https://creativecommons.org/licenses/by-nc/4.0

oai:ojs2.jurnal.polinema.ac.id:article/617 2023-07-27T00:59:25Z elposys:ART

Analisis Pengaruh Penambahan Gardu Induk Terhadap Aliran Daya dan Profil Tegangan Sri Wahyuni Dali Imron Ridzki Rohmanita Duanaputri Egar Rahmat Maulana Power Flow, Voltage, Voltage Performance Index method, Contingency Analysis Addition of the Guluk-Guluk Substation, it will affect the flow of power and voltage in the electric power system. Based on the analysis of normal conditions before and after the Guluk-Guluk Substation in terms of the voltage value on each connected bus, it is still within the permitted limits, while the contingency ranking calculation using the Voltage Performance Index (PIv) method can determine contingency conditions N-1 to N -3 before and after the Guluk-Guluk Substation. In this case, it was found that during the contingency conditions N-1 to N-3 before the Guluk-Guluk Substation there was a decrease in the value of the voltage which was still within the permissible limits, but in the N-3 contingency there was also an overload on the line due to the release of two generator units and one channel. After the existence of the Guluk-Guluk Substation, during the N-1 to N-2 contingency conditions the voltage value was still within the permissible limits, but the voltage drop that occurred was bigger than the condition before the Guluk-Guluk Substation. For the N-3 contingency condition the voltage value does not meet the standard due to overload on the Ujung Substation - Bangkalan Substation line and the lack of power flow. Politeknik Negeri Malang 2022-10-28 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.polinema.ac.id/index.php/elposys/article/view/617 10.33795/elposys.v9i2.617 Elposys: Jurnal Sistem Kelistrikan; Vol. 9 No. 2 (2022): ELPOSYS Vol. 9 No. 2 (2022); 58-63 2407-2338 2407-232X eng https://jurnal.polinema.ac.id/index.php/elposys/article/view/617/353 Copyright (c) 2022 Elposys: Jurnal Sistem Kelistrikan https://creativecommons.org/licenses/by-nc/4.0

oai:ojs2.jurnal.polinema.ac.id:article/618 2023-07-27T01:01:56Z elposys:ART

Analisis Aliran Daya Reconductoring Saluran Transmisi Paiton Kraksaan-Probolinggo 150 kV Terhadap Saluran Yang Terimbas Rohmanita Duanaputri Ahmad Hermawan Zulvina Arifah Deviation analysis, PT.PLN, reconductoring, open circuit method This reconductoring is carried out using the open circuit method or a total blackout in a circuit where the conductor is being replaced by taking into account the stages determined by PT. PLN (Persero). So that the power flow in the system must be considered when these conditions take place for the sake of service reliability or system reliability using a power flow simulator application, namely ETAP software. The simulation voltage tolerance with actual conditions is 5%. Next, analyze the power flow on the affected transmission line which is directly connected to the Kraksaan – Paiton – Probolinggo 150 kV transmission line based on voltage drop, transmission line losses and loading from each stage. As well as calculating the power transfer capability after and before reconductoring. The results of the simulation show that the most significant anomaly (deviation that should not be) is that there is a critical point loading of up to 89.220% on the Probolinggo - Gondangwetan channel when reconductoring has been carried out except for the Paiton - Kraksaan1 transmission line. Meanwhile, the value of power transfer capability increased after reconductoring, where the Paiton-Kraksaan1 and Paiton-Kraksaan2 channels increased by 63.91 MW, the Kraksaan - Probolinggo1 channel increased by 67.95 MW, and the Kraksaan - Probolinggo2 channel increased by 63.461 MW from previously Politeknik Negeri Malang 2022-10-28 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.polinema.ac.id/index.php/elposys/article/view/618 10.33795/elposys.v9i2.618 Elposys: Jurnal Sistem Kelistrikan; Vol. 9 No. 2 (2022): ELPOSYS Vol. 9 No. 2 (2022); 64-69 2407-2338 2407-232X eng https://jurnal.polinema.ac.id/index.php/elposys/article/view/618/354 Copyright (c) 2022 Elposys: Jurnal Sistem Kelistrikan https://creativecommons.org/licenses/by-nc/4.0

oai:ojs2.jurnal.polinema.ac.id:article/619 2023-07-27T01:06:22Z elposys:ART

Desain Closed-Loop Boost Converter Berbasis Voltage Lift Cell Untuk Implementasi Penguat Tegangan Masramdhani Saputra Asfari Hariz Santoso Slamet Nurhadi Imron Ridzki Sri Wahyuni Dali Boost Converter, Converter, Phovoltaic, PID controller, PSIM In the Photovoltaic (PV) Cell, a dc-dc converter circuit is needed which functions to regulate and change the output of the Photovoltaic (PV) Cell. Conventional DC-DC boost converters are unable to provide a high step-up voltage boost due to the effects of switching power, rectifier diodes, and equivalent series resistance of inductors and capacitors. In this study, a closed loop design using a PID controller and analysis of a non-isolated boost dc-dc converter based voltage lift technique were carried out to achieve a high step-up voltage gain. In the presented converter two inductors, three capacitors and three power diodes are used. From this structure, this converter is referred to as a voltage lift cell-based boost converter. The structure of the presented converter is considered very simple, since it has only two stages of power. The voltage and current equations of each element with the converter voltage gain under continuous conduction mode (CCM) were extracted. In addition, the steady state analysis of the amplified stress and boundary conditions is discussed in this study. This boost converter circuit is simulated through the PSIM application. From the simulation results in the PSIM application, it is found that the boost converter circuit is able to increase the voltage from 100 V to 400 V and has an error value of 0. The specifications of the simulation results are a duty cycle of 0.6, and a frequency of 10,000 Hz. Politeknik Negeri Malang 2022-10-28 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.polinema.ac.id/index.php/elposys/article/view/619 10.33795/elposys.v9i2.619 Elposys: Jurnal Sistem Kelistrikan; Vol. 9 No. 2 (2022): ELPOSYS Vol. 9 No. 2 (2022); 70-75 2407-2338 2407-232X eng https://jurnal.polinema.ac.id/index.php/elposys/article/view/619/355 Copyright (c) 2022 Elposys: Jurnal Sistem Kelistrikan https://creativecommons.org/licenses/by-nc/4.0

oai:ojs2.jurnal.polinema.ac.id:article/620 2023-05-17T07:17:23Z elposys:ART

Audit Kelistrikan pada Gedung Administrasi Niaga (AB) dan Akuntansi (AC) Politeknik Negeri Malang Hermawan, Ahmad Hutama, Roby Tri Stya Prasetyo, Budi Eko Wiharya, Candra energy Energy Consumtion (IKE) equipment Lighting Temperature This study aims to analyze the average consumption of electrical energy and the Intensity of Energy Consumption (IKE)and the effect of temperature of electrical equipment in the main panel of the AB and AC buildings on the applicable electrical standards in the AB and AC buildings of Politeknik Negeri Malang. From the research, the results of the average consumption of electrical energy in each building are 2591.96 kWh and 1799.74 kWh per month, the value of Energy Consumption Intensity (IKE) is 34.55 kWh / m2 and 34.11 kWh / m2, both results fall into the category of energy use. very efficient, all the equipment in the panels of the two buildings is in good condition according to the PLN SK DIR 520 2014 book, the highest temperature value of the safety equipment is 32.8 ᵒC at NH Fuse T. this is due to the current flowing of 34.29A, the value of the equipment with the lowest temperature of 27.8 C on MCB C16 with a maximum standard of 45 C, the current conductive capacity is still in accordance with using a 2.5 mm2 cable with KHA 46 A, while the load current for each branch is protected by MCB 10 A. For cooling in rooms that use AC The split is 28,000 BTU / hour and it is still below the standard of 38,000 BTU / hour Politeknik Negeri Malang 2023-02-15 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.polinema.ac.id/index.php/elposys/article/view/620 10.33795/elposys.v8i1.620 Elposys: Jurnal Sistem Kelistrikan; Vol. 8 No. 1 (2021): ELPOSYS vol.8 no.1 (2021); 6-10 2407-2338 2407-232X eng https://jurnal.polinema.ac.id/index.php/elposys/article/view/620/350 Copyright (c) 2023 Elposys: Jurnal Sistem Kelistrikan https://creativecommons.org/licenses/by-nc/4.0

oai:ojs2.jurnal.polinema.ac.id:article/621 2023-07-27T01:07:14Z elposys:ART

Analisis Pemecahan Beban Penyulang Kalipare 20 kV Sri Wahyuni Dali Imron Ridzki Muhammad Fahmi Hakim Hana Nabilla Hapsari Latasha Fadiela Nurlakshita load dispatching, ETAP, voltage drop The Kalipare feeder is a feeder located at PT PLN (Persero) ULP Sumberpucung where the feeder has a feeder length of 232.9 kms and a load of 161.8 A, with a voltage drop of 17.981 kV, the energy loss that is not channeled in 40.82 minutes is IDR 5,333,734.00. So with that the feeder is carried out there is a splitting of the load into two, namely 86.6 A and 74.4 A, with the end voltage being 19.27 kV, with the energy loss that is not channeled in 40.82 minutes is Rp. 2,454.510.8. This load solving is carried out based on the existing conditions of the Kalipare Feeder in 2019, as well as modeling in the form of simulations using ETAP 12.6 and analyzing the simulation results with the existing load breaking conditions in 2020. Load splitting locations are carried out at 7 points taking into account the value of the investment to be made used to do the job. The locations where the load splitting will be carried out are GI Karangkates, Perempatan Peteng, Tumpakmiri, Kalipare, and Banduarjo with an investment cost of Rp. 21,124,247,696 with the construction of 527 gates. After breaking the load, which resulted in the Kalipare feeder and the Donomulyo feeder, the value of the voltage drop on the Kalipare feeder decreased to 18.25 kV; 8.70%, while the Donomulyo Feeder is 19.241 kV; 3.84%. The solution to the load of the Kalipare feeder will minimize losses due to blackouts and increase customer satisfaction. Politeknik Negeri Malang 2022-10-28 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.polinema.ac.id/index.php/elposys/article/view/621 10.33795/elposys.v9i2.621 Elposys: Jurnal Sistem Kelistrikan; Vol. 9 No. 2 (2022): ELPOSYS Vol. 9 No. 2 (2022); 76-80 2407-2338 2407-232X eng https://jurnal.polinema.ac.id/index.php/elposys/article/view/621/356 Copyright (c) 2022 Elposys: Jurnal Sistem Kelistrikan https://creativecommons.org/licenses/by-nc/4.0

oai:ojs2.jurnal.polinema.ac.id:article/622 2023-07-27T01:08:09Z elposys:ART

Perencanaan Dan Analisis Pembangkit Listrik Hybrid PLTS 4x50 Wp dan PLTB Tipe Darrieus Kapasitas 100 Watt Mohamad Arya Iga Wardana Mohammad Noor Hidayat Ananto, Rhezal Agung Darrieus Type, PLTH, PLTS, Reneable Energy In this era energy resources are the main issues that are developing today, this is due to energy needs, offset by population growth and economic growth in Indonesia which is increasing, wind energy and solar energy are renewable energy sources that come from the process of natural that the possibility of the energy will never run out. Both of these energies can be used to produce electrical energy through a power generation process, namely the Hybrid Power Plant (PLTH). Hybrid power generation system is a combination of 2 or more alternative energy power plants, namely wind energy and solar heat. Previously installed 2x50 wp PLTS and Darieus type PLTB with a capacity of 100 watts due to the lack of supply for the 45 ah battery, 2x50 wp PLTS will be added so that charging the battery is faster and optimal and can be used as a reference to compare 2x100 Wp PLTS and 4x50 wp PLTS. The parameters used for this research are the state of the energy source and the electrical load in the futsal field of the State Polythecnic of Malang. in PLTS having an average solar radiation of about 882.14W/m2 can produce a power of 1,252.63 W using PV Monocrystaline of 1.42 m2 Politeknik Negeri Malang 2022-10-28 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.polinema.ac.id/index.php/elposys/article/view/622 10.33795/elposys.v9i2.622 Elposys: Jurnal Sistem Kelistrikan; Vol. 9 No. 2 (2022): ELPOSYS Vol. 9 No. 2 (2022); 81-86 2407-2338 2407-232X eng https://jurnal.polinema.ac.id/index.php/elposys/article/view/622/357 Copyright (c) 2022 Elposys: Jurnal Sistem Kelistrikan https://creativecommons.org/licenses/by-nc/4.0

oai:ojs2.jurnal.polinema.ac.id:article/623 2023-05-17T07:17:23Z elposys:ART

Implementasi Kendali Tegangan Lup Tertutup Buck Converter dengan ArduinoMega Saputra, Masramdhani Djulihenanto, saddani Fadlika, Irham PI controller Buck Converter Arduino Mega One type of power converter that is widely applied in the field of renewable energy is DC-DC Converter. In variousapplication cases, voltage control features are often required. One of the challenges is how to build a closed loop controller to control the output voltage of the DC-DC Converter. In this journal, an Arduino Mega based output voltage controller will be implemented. The type of voltage controller implemented is the PI controller with the consideration that the controller has been well-known tested and mathematically proven. The PI controller is set based on closed loop block diagram calculations with the Buck Converter as the main plant. The implementation of the PI controller on the Arduino Mega is based on the expected transient response settings. PI controller was successfully implemented in this study. The experimental results show that, the controller can maintain its voltage along with changes, both source and load voltage. Thus, it can be concluded that the Arduino Mega board can work well in closed loop applications for power converter control. Politeknik Negeri Malang 2023-02-15 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.polinema.ac.id/index.php/elposys/article/view/623 10.33795/elposys.v8i1.623 Elposys: Jurnal Sistem Kelistrikan; Vol. 8 No. 1 (2021): ELPOSYS vol.8 no.1 (2021); 11-15 2407-2338 2407-232X eng https://jurnal.polinema.ac.id/index.php/elposys/article/view/623/358 Copyright (c) 2023 Elposys: Jurnal Sistem Kelistrikan https://creativecommons.org/licenses/by-nc/4.0

oai:ojs2.jurnal.polinema.ac.id:article/624 2023-05-17T07:21:00Z elposys:ART

Studi Kelayakan Gas Insulated Switchgear di PT. Paiton Operation & Maintenance Indonesia Unit 8 Duanaputri, Rohmanita Ridzki, Imron Hidayatullah, M. Syarif Yulianto, Mohammad Iqbal Feasibility Test Value limit Protection systems are a collection of components that have the same purpose to protect or secure. One of the existing protection systems in the generator is switchgear. At PT. Paiton Operation & Maintenance Indonesia Unit 8 using a switchgear insulated with SF6 gas is called gas insulated switchgear. Gas Insulated Switchgear is the newest of the Switchyard innovations. Innovations that have been developed from air isolation into gas insulation have fewer land use advantages and a better level of density. In determining the feasibility of gas insulated switchgear PT. Paiton Operation & Maintenance Indonesia performs tests consisting of insulation resistance measurements, resistance measurements, gas leakage checks, polarity checking, gas density detectors, testing duration closure and circuit breaker opening. Each test has a pre-defined value limit. Gas Insulated switchgear is said to be feasible to operate when it meets the specified value limits on each test. Politeknik Negeri Malang 2023-05-17 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.polinema.ac.id/index.php/elposys/article/view/624 10.33795/elposys.v8i1.624 Elposys: Jurnal Sistem Kelistrikan; Vol. 8 No. 1 (2021): ELPOSYS vol.8 no.1 (2021); 34-40 2407-2338 2407-232X eng https://jurnal.polinema.ac.id/index.php/elposys/article/view/624/359 Copyright (c) 2023 Elposys: Jurnal Sistem Kelistrikan https://creativecommons.org/licenses/by-nc/4.0

oai:ojs2.jurnal.polinema.ac.id:article/625 2023-05-17T02:04:34Z elposys:ART

oai:ojs2.jurnal.polinema.ac.id:article/626 2023-05-17T07:20:20Z elposys:ART

Pemasangan Lampu Sorot dan Led Strip Dengan Pengoperasian Otomatis di Gapura Klaster SPI Sukun Kota Malang Hakim, Muhammad Fahmi Ridzki, Imron Sukamdi Mudjiono Kurniawan, Bakti Indra spotlight lamp LED Strips Automation Instalation Installation of spotlights and LED strips with automatic operation at the entrance gate of the SPI Cluster RT.10 RW.04 Bandungrejosari Village, Sukun District Malang City is based on the absence of lighting contained in the writing of the Sukun Pondok Indah Cluster (SPI) so that many guests or couriers who are not aware of the housing. With the installation of spotlights and LED strips, it is hoped that the writing on the gate of the Sukun Pondok Indah cluster will be bright and visible so that guests or couriers can immediately know about the housing. Then people can see when installing spotlights and LED strips with automatic operation, they hope that people can install lighting installations automatically in their respective homes correctly and according to standards. Then people do not need to operate the ON / OFF spotlights and LED strip every day. That way, the benefits of installing spotlights and LED strips with automatic operation, people don't need to ON / OFF the lighting every time. Politeknik Negeri Malang 2023-05-17 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.polinema.ac.id/index.php/elposys/article/view/626 10.33795/elposys.v8i1.626 Elposys: Jurnal Sistem Kelistrikan; Vol. 8 No. 1 (2021): ELPOSYS vol.8 no.1 (2021); 46-50 2407-2338 2407-232X eng https://jurnal.polinema.ac.id/index.php/elposys/article/view/626/361 Copyright (c) 2021 Elposys: Jurnal Sistem Kelistrikan https://creativecommons.org/licenses/by-nc/4.0

oai:ojs2.jurnal.polinema.ac.id:article/628 2023-05-17T07:20:09Z elposys:ART

Rancang Bangun Automatic Smart Energy Meter Berbasis RFId Hakim, Muhammad Fahmi Ridzki, Imron Kusuma, Ichwan Bayu smart energy meter KWh meter smart card RFId The development of technology today makes it easier for humans in their daily activities. One of them is in the digital world. In the industrial era 4.0. more and more companies are issuing breakthrough new products based on digital technology that aim to be practical in their use. One of the technologies applied is the use of smart cards. For example in the use of smart keys in homes and car doors. Then in the current transaction process, many have implemented this smart card technology. The purpose of this research is to apply the latest technology in the energy transaction process which will be applied to the KWh meter. The smart card used is RFId and is integrated in the database and website so that its use is more practical and flexible. Then the use of this smart card can be applied to the smart energy meter so that later the prepaid energy transaction process can be applied easily with this smart energy meter. Politeknik Negeri Malang 2023-05-17 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.polinema.ac.id/index.php/elposys/article/view/628 10.33795/elposys.v8i1.628 Elposys: Jurnal Sistem Kelistrikan; Vol. 8 No. 1 (2021): ELPOSYS vol.8 no.1 (2021); 51-54 2407-2338 2407-232X eng https://jurnal.polinema.ac.id/index.php/elposys/article/view/628/362 Copyright (c) 2021 Elposys: Jurnal Sistem Kelistrikan https://creativecommons.org/licenses/by-nc/4.0

oai:ojs2.jurnal.polinema.ac.id:article/629 2023-08-02T12:28:44Z elposys:ART

Audit Penerangan Pada Gedung A, B, dan C di Perguruan Tinggi Hakim, Muhammad Fahmi Herman, Brenda Yuunilel Vinza Himawan, Helmy Mukti Audit Energi IKE Penghematan Energi Dalam perkembangannya kebutuhan energi listrik menjadi suatu keharusan bagi masyarakat dan rasanya tanpa energilistrik masyarakat tidak dapat melakukan aktifitas sehari-hari termasuk dalam dunia pendidikan. Pada tiap gedung pendidikan pun dituntut untuk handal dan berkualitas, juga mencukupi kebutuhan energinya, selain itu hal yang tak kalah pentingnya adalah bagaimana intensitas konsumsi energi listrik tersebut efisien, terkendali, dan tentunya hemat energi. Audit energi yang dilakukan pada PSDKU Kediri Politeknik Negeri Malang ini difokuskan ke tingkat konsumsi energi dan sistem pencahayaan bangunan. Berdasarkan hasil analisis yang dilakukan terdapat beberapa kesimpulan yang diperoleh yaitu, penggunaan energi listrik di Gedung A lebih besar dibandingkan dengan penggunaan energi listrik pada gedung B dan C. Dikarenakan gedung A berfungsi sebagai pusat perkantoran yang jam kerjanya dan penggunaan ruangannya lebih banyak. Sistem pencahayaan bangunan tergolong kurang, karena terdapat beberapa ruangan yang masih belum memenuhi tingkat lux rata rata standart. Penentuan tingkat lux rata rata dilakukan dengan simulasi DIALux dan contoh ruangan yang digunakan adalah ruang direktur. Penghematan energi adalah dengan melakukan pergantian lampu menggunakan lampu berjenis LED sesuai kapasitas yang di butuhkan. Dengan menggunakan lampu led maka kebutuhan penggunaan energinya semakin rendah tetapi tetap memenuhi pada SNI. Politeknik Negeri Malang 2021-06-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.polinema.ac.id/index.php/elposys/article/view/629 10.33795/elposys.v8i2.629 Elposys: Jurnal Sistem Kelistrikan; Vol. 8 No. 2 (2021): ELPOSYS vol.8 no.2 (2021); 36-40 2407-2338 2407-232X eng https://jurnal.polinema.ac.id/index.php/elposys/article/view/629/363 Copyright (c) 2021 Elposys: Jurnal Sistem Kelistrikan https://creativecommons.org/licenses/by-nc/4.0

oai:ojs2.jurnal.polinema.ac.id:article/630 2023-08-02T12:27:57Z elposys:ART

Analisis Aliran Daya dan Kualitas Daya Voltage Uprating 70 kV ke 150 kV Menggunakan Performance Index Prasetyo, Budi Eko Hakim, Muhammad Fahmi Effendi, Muhammad Marozi Voltage Uprating Aliran Daya Kualitas Daya Profil Tegangan Losses Performance Index Kebutuhan energi listrik semakin meningkat seiring dengan perkembangan beban. Adanya perkembangan bebanmenyebabkan arus pada saluran transmisi semakin besar sehingga profil tegangan menurun dan losses semakin besar khususnya pada saluran transmisi 70 kV. Sehingga diperlukan cara untuk menanggulangi masalah tersebut yaitu dengan mempertinggi level tegangan atau voltage uprating dari 70 kV menjadi 150 kV. Penelitian ini dilakukan pada sistem 67 bus di regional Jawa Timur subsistem Paiton-Grati. Terdapat 20 saluran transmisi 70 kV yang akan di-uprating ke 150 kV. Pemodelan sistem dan simulasi aliran daya saat kondisi sebelum (Initial Condition) dan sesudah uprating (Uprating Condition) menggunakan software ETAP. Selanjutnya menganalisis aliran daya dan kualitas daya berdasarkan profil tegangan dan losses saluran transmisi dari masing-masing kondisi. Serta menggunakan performance index untuk membandingkan performa dari Initial dan Uprating Condition dimana terdiri dari Voltage Performance Index (PIV) dan Active Power Performance Index (PIMW). Rata-rata fluktuasi tegangan saat Initial Condition adalah sebesar -3.17%, dimana terjadi kenaikan profil tegangan saat Uprating Condition menjadi sebesar -2.24% dengan selisih sebesar 0.93%. Losses saluran transmisi saat Initial Condition sebesar 4.253%, dimana terjadi penurunan losses saat Uprating Condition menjadi sebesar 3.917%. Sehingga selisih losses saluran transmisi antara Initial dan Uprating Condition sebesar 0.336%. Performance Index saat Initial Condition sebesar 0.18535 sedangkan saat Uprating Condition sebesar 0.15658, sehingga Uprating Condition memiliki performa yang lebih baik Politeknik Negeri Malang 2021-06-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.polinema.ac.id/index.php/elposys/article/view/630 10.33795/elposys.v8i2.630 Elposys: Jurnal Sistem Kelistrikan; Vol. 8 No. 2 (2021): ELPOSYS vol.8 no.2 (2021); 40-44 2407-2338 2407-232X eng https://jurnal.polinema.ac.id/index.php/elposys/article/view/630/364 Copyright (c) 2021 Elposys: Jurnal Sistem Kelistrikan https://creativecommons.org/licenses/by-nc/4.0

oai:ojs2.jurnal.polinema.ac.id:article/631 2023-08-02T12:23:11Z elposys:ART

Pemanfaatan Panel Surya Sebagai Smart Street Lighting di Desa Banjarejo, Kec. Pakis, Kab. Malang. Ridzki, Imron Prasetyo, Budi Eko Wiharya, Chandra Asfari Hariz Santoso Lukman Hakim Smart PJU Panel surya PIR sensor LDR Permasalahan lampu PJU konvensional secara umum yang dihadapi oleh masyarakat pedesaan, yaitu beban yang harusditanggung oleh masyarakat untuk membayar rekening, selain itu sering terjadi kelalaian untuk menyalakan dan mematikannya. Artikel ini membahas mengenai pemasngan smart PJU yang memanfaatkan pansel surya sebagai sumber utamanya. Secara teknis, penggunaan LDR dan PIR sangat membantu masyarakat untuk menyalakan dan mematikan lampu PJU, dan hasil pengukuran lampu smart PJU panel surya yang menggunakan lampu jenis LED 6 watt dipasang pada ketinggian 4meter dari permukaan jalan didapatkan nilai rata-rata kuat cahaya E sebesr 11.86 lux. Disisi ekonomisnya, masyarakat dapat menghemat energi selama 1 bulan (30 hari) sebesar 21.6kWh dengan total nilai rupiah sebesar Rp. 31,205.52. Politeknik Negeri Malang 2021-06-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.polinema.ac.id/index.php/elposys/article/view/631 10.33795/elposys.v8i2.631 Elposys: Jurnal Sistem Kelistrikan; Vol. 8 No. 2 (2021): ELPOSYS vol.8 no.2 (2021); 45-49 2407-2338 2407-232X eng https://jurnal.polinema.ac.id/index.php/elposys/article/view/631/365 Copyright (c) 2021 Elposys: Jurnal Sistem Kelistrikan https://creativecommons.org/licenses/by-nc/4.0

oai:ojs2.jurnal.polinema.ac.id:article/632 2023-08-02T12:24:14Z elposys:ART

Analisis Resetting Relay Dan Load Presentase Terhadap Pola Pelaksanaan Dan Pemeliharaan Pada Gardu Induk 150 Kv Saketi Banten Hermawan, Ahmad Ananto, Rhezal Agung Kuncoro, Rohmanu Dwi OCR Protection Relay Normal Conditions Maintenance conditions load sharing The Saketi substation has three 150/70 kV power transformers with a capacity of 3x60 MVA with a frequency of 50 Hzwhere all three transformers have the capacity, transformer 1 60 MVA (PAUWELS TRAFO) has 3 feeders with an average load of 300 A, 10 MW, transformer 2 60 MVA (UNINDO) has 3 feeders with an average load of 200 A, 6.9 MW and transformer 3 60 MVA (UNINDO) has 4 feeders with an average load of 300 A, 10 MW. This calculation and simulation analysis is carried out aiming to find out the relay settings on each transformer under normal conditions and in a maintenance state on one of the transformers for a long period of time. From the results of the analysis and calculation, it was found that the OCR relay setting under normal conditions of the incoming 150 kV transformer transformers 1, 2, and 3 has a current setting value of 0.92 A and a time setting of 0.36 seconds. On the outgoing side the 20 kV transformers 1, 2, and 3 have a setting of 1,039 A and a time setting of 0.166 seconds. Politeknik Negeri Malang 2021-06-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.polinema.ac.id/index.php/elposys/article/view/632 10.33795/elposys.v8i2.632 Elposys: Jurnal Sistem Kelistrikan; Vol. 8 No. 2 (2021): ELPOSYS vol.8 no.2 (2021); 50-56 2407-2338 2407-232X eng https://jurnal.polinema.ac.id/index.php/elposys/article/view/632/366 Copyright (c) 2021 Elposys: Jurnal Sistem Kelistrikan https://creativecommons.org/licenses/by-nc/4.0

oai:ojs2.jurnal.polinema.ac.id:article/633 2023-08-02T12:25:03Z elposys:ART

Studi Kinerja Relay Proteksi pada Transformator II 150/20 KV 50 MVA dengan Penyulang Lakarsantri di GIS Karangpilang PT. PLN (Persero) UPT Malang ULTG Ananto, Rhezal Agung Prasetyo, Budi Eko Hanik, Ummu Sugiarto, Riska Salsabila Coordination Protection Relay Transformator The substation is one of the components of the electric power system that is an important role in the distribution ofelectrical energy and load regulation. In the process of distributing electrical energy, continuity of good service is needed, but theinterferences still often occur, both internal and external. On Sunday, July 21, 2019 there was an interference, Lakarsantri feeder CB failed to trip so make the incoming 20kV CB trip. That interference was caused by the burning of the Switching Substation in the Citraland area. Therefore, a new relay setting is needed as a recommendation to use transformator 2 to avoid the recurrence of a similar fault. The relay settings have shown good results where the working time of the relay on the outgoing feeder side is faster than the incoming feeder 20kV and the incoming transformator 150kV side, when coordination simulated using the E-TAP 12.6.0 software by entering the current setting and the time setting, it shows good coordination because when there is an interference on the outgoing feeder, CB outgoing feeder works first, not the incoming feeder 20kV CB or the incoming transformator 150kV CB. Preventive maintenance on other equipment such as CB and CT need to be be done to increase of equipment reliability to reduce the occurs of protection failure or damage to the equipment. Politeknik Negeri Malang 2021-06-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.polinema.ac.id/index.php/elposys/article/view/633 10.33795/elposys.v8i2.633 Elposys: Jurnal Sistem Kelistrikan; Vol. 8 No. 2 (2021): ELPOSYS vol.8 no.2 (2021); 57-65 2407-2338 2407-232X eng https://jurnal.polinema.ac.id/index.php/elposys/article/view/633/367 Copyright (c) 2021 Elposys: Jurnal Sistem Kelistrikan https://creativecommons.org/licenses/by-nc/4.0

oai:ojs2.jurnal.polinema.ac.id:article/634 2023-08-02T12:27:21Z elposys:ART

Uji Performa Pengaman Gangguan Petir Pada Saluran Transmisi 70 kV GI Kebonagung – GI Polehan Menggunakan ATP Draw Harijanto, Priya Surya Prasetyo, Budi Eko Raganingrum, Ekasari SUTT surja petir Sudut Perlindungan Arrester Dalam menjaga kelangsungan penyalurannya di butuhkan perawatan rutin dan sistem pengaman yang bagus untukmengantisipasi keadaan yang tidak normal. Pada studi ini menganalisis gangguan petir di sepanjang saluran transmisi 70 kV dari Gardu Induk Kebonagung menuju Gardu Induk Polehan dengan kondisi titik sambaran yang berbeda, serta menstudi kondisi peralatan ketika terjadi sambaran langsung di transmisi 70 kV. Dari hasil analisis ketika sambaran langsung pada kawat fasa sebesar 1098 kV menuju ke Gardu Induk Kebonagung, arrester akan bekerja membuang tegangan lebih ke tanah, maka tegangan petir yang sampai ke peralatan Gardu Induk Kebonagung kurang dari 60 kV\ sehingga peralatan di Gardu Induk Kebonagung terlindungi dari gangguan petir. Namun apabila arrester tidak bekerja ketika terjadi sambaran langsung, maka peralatan yang rusak adalah CVT (739,26 kV), Ds Line (545,56 kV) dan CT (378,274 kV), karena BIL peralatan tersebut lebih kecil daripada tegangan petir yang sampai dan mengakibatkan sistem padam. Ketika sambaran tidak langsung sebesar 97,068 kV menuju ke GI Kebonagung maka arrester akan bekerja dan peralatan di GI Kebonagung terlindungi. Namun apabila arrester tidak bekerja, peralatan tetap terlindungi karena CVT (65,347 kV), DS Line (16,95 kV) dan CT (4,230 kV), BIL masing-masing peralatan lebih tinggi daripada tegangan petir yang sampai. Maka dapat diketahui bahwa perlu adanya perawatan pada arrester agar dapat bekerja dengan baik ketika terjadi sambaran langsung serta perlu adanya pengecekan GSW dan nilai pentanahan pada tower agar nilai tegangan petir yang sampai di GI Kebonagung tidak lebih besar daripada ketika terjadi sambaran langsung. Politeknik Negeri Malang 2021-06-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.polinema.ac.id/index.php/elposys/article/view/634 10.33795/elposys.v8i2.634 Elposys: Jurnal Sistem Kelistrikan; Vol. 8 No. 2 (2021): ELPOSYS vol.8 no.2 (2021); 66-71 2407-2338 2407-232X eng https://jurnal.polinema.ac.id/index.php/elposys/article/view/634/368 Copyright (c) 2021 Elposys: Jurnal Sistem Kelistrikan https://creativecommons.org/licenses/by-nc/4.0

oai:ojs2.jurnal.polinema.ac.id:article/635 2023-05-30T02:56:27Z elposys:ART

Perancangan dan Pemasangan Instalasi Listrik Rumah Tangga di Lingkungan Kelurahan Jogoyudan Kabupaten Lumajang Habsari, Kumala Mahda Kumala N, Hanifah Nur Haryo, R. Jasa Kusumo Hidayatullah, Nur Asyik Artono, Budi instalasi listrik Sambungan kabel, loop kabel dan pemasangan kabel, saklar tunggal dan saklar seri serta merangkai lampu, instalasi saklar dan stop kontak. Berikut adalah beberapa langkah yang dapat Anda ikuti untuk memastikan pemasangan kabel yang benar dan aman Ketahui luas rumah dan jumlah ruangan agar listrik bisa mengalir dengan baik ke seluruh ruangan dibutuhkan kabel-kabel yang cukup panjang. Mengetahui besar daya listrik yang diperlukan. Mempersiapkan material komponen yang dibutuhkan seperti Miniatur Circuit Breaker (MCB), Earth Leakage Circuit Breaker (ELCB), Box MCB, Sakelar, Stop Kontak, Kabel brand Wilson Cable, Isolasi, Pipa Embodus (kotak sambungan), Tedus. Ketahui kabel instalasi listrik rumah yang tepat. Politeknik Negeri Malang 2021-10-29 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.polinema.ac.id/index.php/elposys/article/view/635 10.33795/elposys.v8i3.65 Elposys: Jurnal Sistem Kelistrikan; Vol. 8 No. 3 (2021): ELPOSYS vol.8 no.3 (2021); 98-101 2407-2338 2407-232X eng https://jurnal.polinema.ac.id/index.php/elposys/article/view/635/369 Copyright (c) 2021 Elposys: Jurnal Sistem Kelistrikan https://creativecommons.org/licenses/by-nc/4.0

oai:ojs2.jurnal.polinema.ac.id:article/636 2023-05-30T02:57:42Z elposys:ART

Analisis Audit Energi Terhadap Intensitas Konsumsi Energi Listrik Sistem Pencahayaan dan Sistem Penyimpanan Ikan di Cold Storage Kabupaten Malang Santoso, Asfari Hariz Hermawan, Ahmad Harianto, Sugeng Energy Audit Energy Consumption Intensity (IKE) Lighting Load Cooling Load Web-based Monitoring System Energy audit is one of the processes in managing energy use to bec ome more efficient. The purpose of this study was to determine the potential for energy savings that can be carried out optimally and accurately in Cold Storage, Malang Regency. Data retrieval using a Web-based Power Quality Meter PM5110 which is carried out for 24 hours on weekdays, then the total consumption of kWh in one day reached 119,538 kWh, while the total usage of kWh in one month is 3586.14 kWh for the month of June and for the total usage for the period of one year is 43631.37 kWh. Regarding the value of energy consumption kWh in a period of one year, it can be generated by dividing the total energy consumed by the building in one year by the total gross floor area of the building. Based on the results of the IKE calculation in the Cold Storage Building, Malang Regency from the results before the recommendation of 34.91 kWh/m2/year and for the result after the recommendation is 174,841 kWh/m2/year, which is included in the very efficient category according to the ASEAN USAID 1987 standard. For energy saving opportunities in the lighting system and cooling system, it can be done by using energy-efficient lamps and changing the operating pattern in the cooling room. Politeknik Negeri Malang 2021-10-29 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.polinema.ac.id/index.php/elposys/article/view/636 10.33795/elposys.v8i3.636 Elposys: Jurnal Sistem Kelistrikan; Vol. 8 No. 3 (2021): ELPOSYS vol.8 no.3 (2021); 102-107 2407-2338 2407-232X eng https://jurnal.polinema.ac.id/index.php/elposys/article/view/636/370 Copyright (c) 2021 Elposys: Jurnal Sistem Kelistrikan https://creativecommons.org/licenses/by-nc/4.0

oai:ojs2.jurnal.polinema.ac.id:article/637 2023-05-30T02:58:22Z elposys:ART

Studi Penyulang Kandangan Untuk Meningkatkan Kontinuitas Suplai Energi Listrik Ke Pelanggan Sukamdi Kristiana, Harrij Mukti Thufail, Abdullah Waluya, Edi Kendalan SAIDI SAIFI ENS Indeks keandalan Penyulang Kandangan pada kondisi awal berdasarkan hasil perhitungan SAIFI diperoleh nilai 11,73kali/tahun dan SAIDI diperoleh nilai 12,76 jam/tahun. Untuk menjaga kualitas sistem tenaga distribusi maka diperlukan suatu rekomendasi solusi untuk meningkatkan kontinuitas suplai energi listrik ke pelanggan di Penyulang Kandangan yaitu dengan menambah pengaman FCO (Fuse Cut Out) dan alternatif manuver jaringan. Sehingga area yang padam dan jumlah pemadaman pelanggan dapat diminimalisir serta meminimalkan nilai energi yang tidak tersalurkan ke pelanggan. Nilai keandalan sistem menurut standar SPLN 59:1985 sebesar SAIDI = 0,83 jam/plg/tahun dan SAIFI = 1,2 kali/plg/tahun. Sedangkan Penyulang Kandangan pada kondisi awal sebesar SAIDI = 12,76 jam/plg/tahun dan SAIFI = 11,73 kali/plg/tahun. Setelah dilakukan scenario rekomendasi solusi, didapatkan penurunan nilai keandalan yang lebih baik yaitu sebesar SAIDI = 6,36 jam/plg/tahun dan SAIFI = 7,63 jam/plg/tahun. Politeknik Negeri Malang 2021-10-29 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.polinema.ac.id/index.php/elposys/article/view/637 10.33795/elposys.v8i3.71 Elposys: Jurnal Sistem Kelistrikan; Vol. 8 No. 3 (2021): ELPOSYS vol.8 no.3 (2021); 108-113 2407-2338 2407-232X eng https://jurnal.polinema.ac.id/index.php/elposys/article/view/637/371 Copyright (c) 2023 Elposys: Jurnal Sistem Kelistrikan https://creativecommons.org/licenses/by-nc/4.0

oai:ojs2.jurnal.polinema.ac.id:article/640 2023-09-05T04:31:34Z elposys:ART

Evaluasi Kinerja Sistem Isolasi Transformator Kertas Kraft Terendam Minyak Mineral Pada Sel Uji Penuaan Termal Dipercepat Rahman Azis Prasojo Kresna Bayu Priambodo Anton Setya Aji Herdiansyah Rohmanita Duanaputri Slamet Nurhadi Epiwardi Transformer, Accelerated Ageing Chamber, Insulation System, Thermal Stress The transformer insulation system in the form of oil-immersed paper, is the most important part of a transformer. This isolation system needs to be ensured that it has the appropriate characteristics, and is resistant to stress due to transformer operation. The most commonly used method for evaluating insulation life is the accelerated thermal aging test. Insulating oil-immersed paper is sealed in a vessel with a ratio in the Accelerated Thermal Aging Chamber with a volume capacity of 3600 ml. It takes about 3000 ml of oil to be poured into a tube with a ratio of insulating oil to insulating paper rolled on copper which is 10:1 and then heated in a thermal oven to accelerate aging. This study aims to develop an Accelerated Aging Chamber for evaluating the performance of transformer isolation systems. The developed test cell is able to reach a set-point of 150°C in 16 minutes with on/off control while PID control in 37 minutes with a Human Machine Interface for monitoring and collecting temperature data in real time, and maintaining that temperature until the end of the experimental period. Theresults of the sample will later be tested for the characteristics of the transformer insulation, namely tensile strength, color scale, andbreakdown voltage due to thermal stress. Politeknik Negeri Malang 2022-10-28 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.polinema.ac.id/index.php/elposys/article/view/640 10.33795/elposys.v9i3.640 Elposys: Jurnal Sistem Kelistrikan; Vol. 9 No. 3 (2022): ELPOSYS vol.9 no.3 (2022); 87-92 2407-2338 2407-232X eng https://jurnal.polinema.ac.id/index.php/elposys/article/view/640/372 Copyright (c) 2022 Elposys: Jurnal Sistem Kelistrikan https://creativecommons.org/licenses/by-nc/4.0

oai:ojs2.jurnal.polinema.ac.id:article/641 2023-09-05T04:31:34Z elposys:ART

Perencanaan dan Implementasi Inverter Satu Fasa Pada Pembangkit Listrik Tenaga Pikohidro di Air Terjun Watu Lumpang Mojokerto Rhezal Agung Naufal Ramadhani Akbar Sapto Wibowo PicoHydro Power Plants, Inverter Renewable energy is a real source of energy that is easy and cheap to use, especially water, therefore it is often used for electrical energy generation systems by utilizing river or waterfall flows. One form of utilization is the Picohydro Power Plant (the smallestscale power plant). Where there is energy potential in an area but has not been utilized optimally, by utilizing the flow of waterfalls in Watu Lumpang Pacet Waterfall Tourism Mojokerto Regency using turbines as a drive and generator as a generator. However, because it is generated in the form of Direct Current (DC) electricity, it takes an inverter as a converter that can convert DC voltage to Alternating Current (AC). So it can be used to supply loads that mostly require AC electricity to operate. Politeknik Negeri Malang 2022-10-28 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.polinema.ac.id/index.php/elposys/article/view/641 10.33795/elposys.v9i3.641 Elposys: Jurnal Sistem Kelistrikan; Vol. 9 No. 3 (2022): ELPOSYS vol.9 no.3 (2022); 108-114 2407-2338 2407-232X eng https://jurnal.polinema.ac.id/index.php/elposys/article/view/641/2549 Copyright (c) 2022 Elposys: Jurnal Sistem Kelistrikan https://creativecommons.org/licenses/by-nc/4.0

oai:ojs2.jurnal.polinema.ac.id:article/642 2023-09-05T04:31:34Z elposys:ART

Sistem Instalasi Pembangkit Pikohidro Untuk Keluaran Listrik Arus Searah 12 Volt Andrik Sunyoto Priya Surya Harijanto Bakti Indra Kurniawan picohydro, alternator, rectifier, baterry This research is focused to help peoples in remote areas who do not have electricity supply from PLN, but have sources of water flow in rivers. The main objective of this research is to create a picohydro hydroelectric power plant with a floating turbine to utilize the kinetic energy of river water flow in areas that have not been supplied with PLN electricity. The flow of water in the river will rotate the turbine, which in the end the rotational power is channeled through a pulley and belt system, which eventually turns an alternator. The alternator used is a three-phase AC alternator. Then the AC current will be rectified by the bridge rectifier to then be used to charge the battery and go to the load. In addition, in this study, the ability of the pico-hydro system to supply electrical energy will be tested to be able to run 12 V DC electrical loads and charge 12 V batteries. Politeknik Negeri Malang 2022-10-28 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.polinema.ac.id/index.php/elposys/article/view/642 10.33795/elposys.v9i3.642 Elposys: Jurnal Sistem Kelistrikan; Vol. 9 No. 3 (2022): ELPOSYS vol.9 no.3 (2022); 99-107 2407-2338 2407-232X eng https://jurnal.polinema.ac.id/index.php/elposys/article/view/642/374 Copyright (c) 2022 Elposys: Jurnal Sistem Kelistrikan https://creativecommons.org/licenses/by-nc/4.0

oai:ojs2.jurnal.polinema.ac.id:article/643 2023-09-05T04:31:34Z elposys:ART

Penilaian Kualitas Gas SF6 Pada GISTET 500/150 kV Rahman Azis Prasojo Devi Soviati Mahmudah Imron Ridzki Muhammad Fahmi Hakim Priya Surya Harijanto GIS, dew point, humidity, condition assessment The number of Gas Insulated Switchgear (GIS) in operation is increasing in Indonesia. GIS failure requires expensive costs andextensive blackouts. Asset reliability management such as SF6 is needed to ensure GIS performance. Several studies have tested thequality of SF6 gas to assess the feasibility and operation of the GIS. However, a complete GIS feasibility study based on SF6 gas qualityparameters has not found. In this study, a condition assessment of the GISTET Kembangan 500/150 kV was carried out based on applicableinternational standards. There is an interesting phenomenon in the form of dew point anomaly and moisture content in severalcompartments, indicating that the gas is moist. The results of this study indicate the operational feasibility of the GISTET Kembangan500/150 kV , the effect of high humidity on GIS operations, and maintenance recommendations. Politeknik Negeri Malang 2022-10-28 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.polinema.ac.id/index.php/elposys/article/view/643 10.33795/elposys.v9i3.643 Elposys: Jurnal Sistem Kelistrikan; Vol. 9 No. 3 (2022): ELPOSYS vol.9 no.3 (2022); 93-98 2407-2338 2407-232X eng https://jurnal.polinema.ac.id/index.php/elposys/article/view/643/2548 Copyright (c) 2022 Elposys: Jurnal Sistem Kelistrikan https://creativecommons.org/licenses/by-nc/4.0

oai:ojs2.jurnal.polinema.ac.id:article/644 2023-09-05T04:31:34Z elposys:ART

Analisa Audit Energi Listrik di PT. Ispat Bukit Baja Kota Bekasi Sulistyowati Ar Raafi Pangestu Sigit Setya Wiwaha Audit, Energy Consumption Intensity, Spesific Energy Consumption, Psychrometric, Lighting, Power Factor An audit energy needs to be carried out because the value of Energy Consumption Intensity in 2020 is 251 kWh / m2 / year and in 2021 it is 221 kWh / m2 / year and the value of Specific Energy Consumption in 2020 is 0.26 GJ / Ton and in 2021 is 0.29 GJ/Ton. The energy audit method used is to calculate the value of Energy Consumption Intensity and Specific Energy Consumption. The savings opportunities made are on the air conditioning system, lighting system, and electric motor load. From the results of the analysis and calculation of savings in the air conditioning system, savings of 50.1% or 67.70 kWatt were obtained using a psychrometric diagram to determine the cooling system according to the needs of the room, then for the lighting system, savings of 21.9% or 6 kWatt by replacing the installed lighting system with energy-saving lamps, then the load of the electric motor is using capacitor to improve the power factor value which was originally 0.77 to 0.85 with the aim that the motor speed does not change which will result in the precision of the production obtained savings in the use of apparent power of 7.13% or 126.52 kVA. The total recommended power saving obtained from the calculation results is 73.7 kWatt. So based on the calculation of the energy audit that has been done, it can reduce production costs and energy use efficiency Politeknik Negeri Malang 2022-10-28 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.polinema.ac.id/index.php/elposys/article/view/644 10.33795/elposys.v9i3.644 Elposys: Jurnal Sistem Kelistrikan; Vol. 9 No. 3 (2022): ELPOSYS vol.9 no.3 (2022); 115-120 2407-2338 2407-232X eng https://jurnal.polinema.ac.id/index.php/elposys/article/view/644/376 Copyright (c) 2022 Elposys: Jurnal Sistem Kelistrikan https://creativecommons.org/licenses/by-nc/4.0

oai:ojs2.jurnal.polinema.ac.id:article/645 2023-09-05T04:31:34Z elposys:ART

Analisis Pembebanan Terhadap Perkiraan Umur Transformator Distribusi 20 kV Penyulang Lowokwaru di PT. PLN(PERSERO) UP3 Malang Asfari Hariz Santoso Ernanda Rizka Harrij Mukti K. Distribution Transformer, Loading, Age, Winding Temperature One of the causes of the reduced life of the transformer is due to loading. From the eleven transformers, it can be seen that there are different loading variations, it is expected that the transformer life will remain at normal age. IEC 60354-1, 1991 stipulates the normal life of the transformer is 20.55 years. The research method used is to perform calculations using the long-time method and 24-hour daily data by calculating the loading at the time of LWBP and WBP on a 20 kV distribution transformer. Analysis of the calculation results revealed that the normal condition of the transformer P1385 (68.66 %) winding temperature at LWBP 67.47°C and when WBP 69.45°C compared to transformer P0032 with overload conditions (120.91%) winding temperature when LWBP 60, 88°C and at WBP 119.51°C. From the data on the lowest loading on the eleven transformers, namely transformer P0527 (41.69%) it is obtained that the estimated real aging age is 0.125 and the estimated age of the P0527 transformer is >20 years. Compared to transformer P0032 (120.91%), the estimated real aging age is 12,0003 p-u and the estimated age is less than 20 years or 9.5 years. Loading above 100% on the transformer based on the standard IEC 60354-1, 1991 if it takes place continuously will cause heating of the transformer windings which can cause the shrinkage process in the life of the transformer to be faster. Politeknik Negeri Malang 2022-10-28 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.polinema.ac.id/index.php/elposys/article/view/645 10.33795/elposys.v9i3.645 Elposys: Jurnal Sistem Kelistrikan; Vol. 9 No. 3 (2022): ELPOSYS vol.9 no.3 (2022); 121-126 2407-2338 2407-232X eng https://jurnal.polinema.ac.id/index.php/elposys/article/view/645/377 Copyright (c) 2022 Elposys: Jurnal Sistem Kelistrikan https://creativecommons.org/licenses/by-nc/4.0

oai:ojs2.jurnal.polinema.ac.id:article/646 2023-09-05T04:31:34Z elposys:ART

Analisis Rencana Pemasangan Transformator Sisipan Untuk Mengatasi Overload dan Drop Voltage pada Penyulang Selogabus PT. PLN (Persero) ULP Bojonegoro Kota Harrij Mukti K. Sukamdi Muhammad Hadyan Farizan Muhammad Rafid Faiz Firmansyah Selogabus Feeder, Overload, Drop Voltage, Insert Transformer Transformers MA164 (250 kVA) and MA267 (250 kVA) have experienced overload (LoadMA164 = 102% and LoadMA267 = 111%) based on the loading standardization, namely SE DIR PT. PLN (Persero) No.0017/2014 (≤ 80%). The MA164 and MA267 transformers also have the farthest customer end voltages of 187 V (ΔVMA164 = 23%) and 189 V (ΔVMA267 = 22%) which do not comply with SPLN standard No. 1 Th. 1995 (+5% and -10%). An effective solution is to install an insert transformer because MA164 and MA267 cannot be uprated and cannot be broken by the JTR load. For planning the installation of the insert transformer it is necessary to carry out load forecasting, determination of the capacity of the insert transformer, division of the line of the farthest customer parts, determination of the location and selection of distribution substation accessories.The MA164 insert transformer (160 kVA) is installed at a distance of 416 m from the MA164 Transformer with a loading of 47%, while the MA267 insert transformer (200 kVA) is installed at a distance of 255 m from the MA164 Transformer with a loading of 47%. After installation the insert transformer MA164 transformer has a load of 77% and a end voltage of 211.9 V (ΔVMA164 = 9%), while the MA267 Transformer has a loading of 62% and an end voltage of 212.7 V (ΔVMA267 = 8%). With the appropriate conditions, the transformer can function properly and the customer's electrical equipment can function normally. Politeknik Negeri Malang 2022-10-28 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.polinema.ac.id/index.php/elposys/article/view/646 10.33795/elposys.v9i3.646 Elposys: Jurnal Sistem Kelistrikan; Vol. 9 No. 3 (2022): ELPOSYS vol.9 no.3 (2022); 127-133 2407-2338 2407-232X eng https://jurnal.polinema.ac.id/index.php/elposys/article/view/646/378 Copyright (c) 2022 Elposys: Jurnal Sistem Kelistrikan https://creativecommons.org/licenses/by-nc/4.0

oai:ojs2.jurnal.polinema.ac.id:article/647 2023-09-05T04:31:34Z elposys:ART

Rancang dan Bangun Mesin Filling Sari Kedelai dengan Pneumatik Tresna Umar Syamsuri Rahma Nur Amalia Mudjiono Home industry, Pneumatic, Filling Currently, the industry is required to work quickly, optimally, and produce products in large and accurate quantities. Due to the high demand, home industries with simple technology are required to produce a lot of goods. One example of a household industry that has a lot of demand for its products is the soybean juice beverage industry. However, in the process of filling soy juice drinks into bottles, there are several shortcomings, including the process is still manual, spills easily, the amount of liquid is not appropriate or not constant, takes a long time, and drains a lot of energy. To maximize production results, a machine with a pneumatic system was made, where this system uses compressed air as the working medium and electricity as the control medium. The design of this filling machine is carried out using several methods such as observation, literature study, and making designs. Soybean filling machine is a tool produced in this study. The operation of the machine can be semi-automatic and automatic has a high level of accuracy and has an error of about 0.045%-0.09%. This filling machine can fill bottles with sizes ranging from 250 ml to 800 ml, besides that this machine is also equipped with a bottle counter that is already filled with drinks. The application of filling machines in home industries has the potential to increase the productivity of soybean juice drinks and the income of their owners. Politeknik Negeri Malang 2022-10-28 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.polinema.ac.id/index.php/elposys/article/view/647 10.33795/elposys.v9i3.647 Elposys: Jurnal Sistem Kelistrikan; Vol. 9 No. 3 (2022): ELPOSYS vol.9 no.3 (2022); 134-138 2407-2338 2407-232X eng https://jurnal.polinema.ac.id/index.php/elposys/article/view/647/379 Copyright (c) 2022 Elposys: Jurnal Sistem Kelistrikan https://creativecommons.org/licenses/by-nc/4.0

oai:ojs2.jurnal.polinema.ac.id:article/648 2023-09-05T04:31:34Z elposys:ART

Rancang Bangun Alat Monitoring Daya Listrik di Asrama Berbasis Web Menggunakan ESP32 Tresna Umar Syamsuri Rahma Nur Amalia Mudjiono Aly Imron Dormitory, Electricity, Blynk This study aims to design and build tools that can measure current, voltage, and electricity in the dormitory using a current sensor and voltage sensor controlled by a microcontroller. This device can be monitored and controlled on a real-time scale through the Blynk website and displayed through the LCD size. The tools that were built were placed centrally in the dormitory. Through the Blynk website, the dormitory owner gets the authority to determine the limit of the use of electricity in a room and increase the number of rooms as much as needed, while the room owner can monitor the mutation of electricity use. Every time the total power reaches the upper limit, relay will be active to decide on the electric current. This device is expected to be able to help the homeowner of the dormitory in calculating the cost of monthly electricity tokens. The simulation is carried out using a dormitory house model consisting of three rooms with a maximum power of 500 VA per room. Load simulation using lamps, fans, laptops, etc. The test results show a difference in sensor accuracy. The current sensor ACS712 in room 1 has a percentage of error of 11.88%, room 2 has 10.63%, and room 3 has 9.38%. Three ZMPT101B voltage sensors, considered quite accurate with a percentage of error 0.16%. So that the power value obtained has a percentage of power error for room 1 has 24.30%; Room 2 has 13.24%; While room 3 has 18.76%. Politeknik Negeri Malang 2022-10-28 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.polinema.ac.id/index.php/elposys/article/view/648 10.33795/elposys.v9i3.648 Elposys: Jurnal Sistem Kelistrikan; Vol. 9 No. 3 (2022): ELPOSYS vol.9 no.3 (2022); 139-145 2407-2338 2407-232X eng https://jurnal.polinema.ac.id/index.php/elposys/article/view/648/380 Copyright (c) 2022 Elposys: Jurnal Sistem Kelistrikan https://creativecommons.org/licenses/by-nc/4.0

oai:ojs2.jurnal.polinema.ac.id:article/649 2023-09-05T04:31:34Z elposys:ART

Analisis Perencanaan Sistem Jaringan Distribusi Listrik dan Perkembangan Beban Pada Perumahan The Grand Kenjeran Surabaya Epiwardi Ruwah Joto Muhammad Urfan Barran Rusyda Marzuq Distribution System, Underground Cable Planning here aims to get an optimal service flexibility so that it is able to quickly anticipate the growth of electrical energy and how dense the load that must be served. So that the planning of the electricity distribution network system must pay attention to the load conditions in the field, this is intended so that the planned distribution network system can still work well for the next few years. The data collection method used is in the form of field observations which aim to determine field conditions and obtain load data that will be planned. The results of research conducted at The Grand Kenjeran Surabaya housing show that there are 76 housing units to be built in this housing. The 76 housing units will be divided into 4 blocks D, E, F, G and are planned with an initial power of 5500 VA for each housing unit along with Public Road Planning in residential areas. Taking into account field conditions, ground cables are used as a distribution network system which includes SKTM and SKTR. The total power obtained is 435,107.5 VA and is served by 3 units of distribution transformer using Pole Transformer Substation, 3 PHB-TR, 12 Main PHB, and 3 Branch PHB. The magnitude of the possible voltage drop is around 0.97% for medium voltage, 0.3% - 0.92% for Main PHB group, 0.7% - 1.54% for Branch PHB group. Politeknik Negeri Malang 2022-10-28 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.polinema.ac.id/index.php/elposys/article/view/649 10.33795/elposys.v9i3.649 Elposys: Jurnal Sistem Kelistrikan; Vol. 9 No. 3 (2022): ELPOSYS vol.9 no.3 (2022); 146-154 2407-2338 2407-232X eng https://jurnal.polinema.ac.id/index.php/elposys/article/view/649/381 Copyright (c) 2022 Elposys: Jurnal Sistem Kelistrikan https://creativecommons.org/licenses/by-nc/4.0

oai:ojs2.jurnal.polinema.ac.id:article/650 2023-09-05T04:31:34Z elposys:ART

Analisa Audit Upaya Efisiensi Energi di PT. Telkom Witel Unit Network Area dan IS Operation Ruwah Joto Sukamdi Pratama Aditya Efficiency, Energy Audit, IKE, STO Malang City The increasing use of energy, in line with the development of the economy and industry, it is also necessary to realize the importanceof saving energy on the consumption side. Energy conservation is an increase in the efficiency of energy used or energy saving processes.This process includes an energy audit, which is a method for calculating the energy consumption level of a building or buildings, the resultsof which will be compared with existing standards to then look for solutions to save energy consumption if the energy consumption levelexceeds existing standards. The method used for research in this final project uses a walking audit by collecting data based on current,voltage, and power measurements. The data will be used to determine the analysis of the consumption of electrical energy used in the PT.Telkom Witel Unit Network and IS Operation Malang. Calculation of the IKE value (Energy Consumption Intensity) of the Malang City STObuilding for the results from the account data, the results are 479.14 kWh/m²/year. As for the IKE value from the measurement, the result is443.5 kWh/m²/Year 2, the value of the IKE is very inefficient from the standard compared to the ASEAN USAID standard in 1987, becausethe total power per year is not proportional to the existing building area. The lighting strength value after the recommendation is according tothe standard by replacing the lamp with a large lumen value, while in the cooling system the calculation of the BTUH requirement for eachroom is compared to the BTU AC (Air conditioner). Politeknik Negeri Malang 2023-02-17 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.polinema.ac.id/index.php/elposys/article/view/650 10.33795/elposys.v9i3.650 Elposys: Jurnal Sistem Kelistrikan; Vol. 9 No. 3 (2022): ELPOSYS vol.9 no.3 (2022); 155-160 2407-2338 2407-232X eng https://jurnal.polinema.ac.id/index.php/elposys/article/view/650/382 Copyright (c) 2023 Elposys: Jurnal Sistem Kelistrikan https://creativecommons.org/licenses/by-nc/4.0

oai:ojs2.jurnal.polinema.ac.id:article/651 2023-09-05T04:31:34Z elposys:ART

Analisis Manuver Penyulang Selecta untuk Menjaga Nilai Keandalan Sistem Distribusi di PT. PLN (Persero) ULP Batu Sukamdi Awan Setiawan Heri Sungkowo Maneuvers, SAIDI, SAIFI, Drop Voltage, Distribution System PT. PLN (Persero) ULP Batu, The Selecta feeder is one of the 7 feeders in the distribution system that supplies several areas in PT. PLN (Persero) ULP Batu. In the Selecta feeder themselves, the number of error that occurred from January to November 2020 was fourteen times, with details of one time temporary error and thirteen times permanent errors. Delegating a portion of the load from feeders which got error can have an impact on feeders which are working normally. This can cause a voltage drop on the feeder for maneuvering purposes so that the distribution of electric power becomes less than optimal and requires some other loads to be temporarily transferred to other feeders. Based on the problems that occur, it is necessary to analyze the maneuver to reduce the impact of disruption on The Selecta feeder and maintain the reliability value of the distribution system at PT. PLN (Persero) ULP Batu. Politeknik Negeri Malang 2022-10-28 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.polinema.ac.id/index.php/elposys/article/view/651 10.33795/elposys.v9i3.651 Elposys: Jurnal Sistem Kelistrikan; Vol. 9 No. 3 (2022): ELPOSYS vol.9 no.3 (2022); 161-166 2407-2338 2407-232X eng https://jurnal.polinema.ac.id/index.php/elposys/article/view/651/383 Copyright (c) 2022 Elposys: Jurnal Sistem Kelistrikan https://creativecommons.org/licenses/by-nc/4.0

oai:ojs2.jurnal.polinema.ac.id:article/652 2023-09-05T04:31:34Z elposys:ART

Perencanaan Rekonfigurasi Penyulang Mojoanyar Dengan Pengalihan Beban Ke Penyulang Elkishi Di Daerah Kawasan Industri Mojosari Pada PT PLN (Persero) UP3 Mojokerto Mochammad Mieftah Heri Sungkowo Mudjiono Reconfiguration, Loading, Drop Voltage, Losses, ETAP Simulation Mojosari is a customer area consisting of industrial customers and high power customers. Currently, the demand for electrical energy in the area is supported by the Mojoanyar Feeder, which is supplied by the Transformer I Pulling Substation I with a capacity of 30 MVA. The reconfiguration of the feeder was carried out for several reasons, one of which was the addition of power from an industrial customer in the Mojoanyar Feeder area of PT PLN (Persero) ULP Mojosari, namely PT Sinar Karya Duta Abadi (Arwana). If there is additional power, the additional load capacity also increases in a feeder. If the load capacity increases, the current flowing in the conductor also increases. It can be seen from the loading data in February 2021 that the maximum current flowing in the Mojoanyar Feeder during the day is 210 A, the maximum current flowing in the Mojoanyar Feeder at night is 215 A. And if there is a disturbance near the area, the Mojoanyar Feeder will not maneuver because the load is close to the maximum. Therefore, PT PLN (Persero) ULP Mojosari plans a reconfiguration of the feeder by transferring the burden of the Mojoanyar feeder.The analysis was carried out using the simulation program ETAP Power Station 12.6.0. and manual calculations according to standards. After being reconfigured, the Mojoanyar Feeder experienced a decrease in the value of the voltage drop from 8.78% to 7.86%. Mojoanyar feeders experienced a decrease in losses of 5.84% compared to before the reconfiguration of 10.4% Politeknik Negeri Malang 2022-10-28 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.polinema.ac.id/index.php/elposys/article/view/652 10.33795/elposys.v9i3.652 Elposys: Jurnal Sistem Kelistrikan; Vol. 9 No. 3 (2022): ELPOSYS vol.9 no.3 (2022); 167-172 2407-2338 2407-232X eng https://jurnal.polinema.ac.id/index.php/elposys/article/view/652/384 Copyright (c) 2022 Elposys: Jurnal Sistem Kelistrikan https://creativecommons.org/licenses/by-nc/4.0

oai:ojs2.jurnal.polinema.ac.id:article/653 2023-09-05T04:31:34Z elposys:ART

Analisis Penambahan Nutrisi Pada Tanaman Hidroponik Berbasis Internet of Things Priya Surya Harijanto Masramdhani Saputra Oky Achmad E Hakim, Muhammad Fahmi nutrient enhancement tools, analysis of adding nutrients to hydroponics, internet of things, hydroponics In an increasingly advanced era, electrical energy has become a basic resource for humans, the wider and more equitable distribution has greatly influenced the progress of all sectors of electricity users. However, on the other hand, this hydroponic business requires precision and special attention by the actors to support the maximum success of the hydroponic business. Several previous tools have been able to overcome the problem of irrigation for hydroponic plants. However, there is no tool that can regulate the addition of nutrients based on the internet of things and monitor the hydroponics. So, a tool for adding nutrients to hydroponic plants based on the internet of things was designed that is equipped with supervision on plant nutrition. It is hoped that after the manufacture and analysis of tools on hydroponic plants can overcome the problems that are often experienced by hydroponic entrepreneurs.The research was conducted from May to July 2022 in Margoutomo Dalam, Dau, Malang. This nutrient addition tool is designed using an Arduino Uno microcontroller where as a regulator and NodeMCU is added as an online access on the user's cellphone. After the tool has been designed, a regression analysis is carried out to determine the effect of nutrient levels on the fertility of hydroponic plants. The results of this study showed that the nutritional value of a good plant was 350 ppm, with the response rate of this nutrition enhancer at 1.62% per second at a distance of 338 km for testing the user. Politeknik Negeri Malang 2022-10-28 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.polinema.ac.id/index.php/elposys/article/view/653 10.33795/elposys.v9i3.653 Elposys: Jurnal Sistem Kelistrikan; Vol. 9 No. 3 (2022): ELPOSYS vol.9 no.3 (2022); 173-178 2407-2338 2407-232X eng https://jurnal.polinema.ac.id/index.php/elposys/article/view/653/385 Copyright (c) 2022 Elposys: Jurnal Sistem Kelistrikan https://creativecommons.org/licenses/by-nc/4.0

oai:ojs2.jurnal.polinema.ac.id:article/654 2023-09-05T04:31:34Z elposys:ART

Rancang Bangun Sistem Pemberian Pakan Ikan Lele Otomatis Berbasis Mikrokontroler Hanifiyah Darna Fidya Amaral Divac Nabiel Akbar Afidah Zuroida microcontroller, catfish, technology Technology allows the process of managing catfish remotely, namely catfish managers do not need to manage feeding. In addition, the automated system makes it possible to preserve the quality of catfish as well as savings in feed costs. Today's automated tools mostly use a microcontroller as a controller. Microcontrollers can be programmed to execute commands as needed and at the same time become a form of automation system application in catfish management. In this study, the author designed a microcontroller-based automatic catfish feeding system. The microcontroller used is the ATMega 28 microcontroller which is connected to the RTC DS3231 module. This microcontroller is also equipped with a servo motor that works to move the fish feed valve automatically. The servo motor used is the MG996R servo which has a working voltage of 6V which is sourced from the power supply which is lowered in voltage using step down. The RTC DS3231 module is connected with the arduino uno R3 module, which is the control center of the automatic feed device. The microcontroller turns on following the fish feeding time, which is 8 am and 3 pm. The servo motor will work to open the valve twice in one day automatically with an angle or percentage of the feed valve opening by 35% - 45% for approximately 5 - 10 seconds and the feed that comes out is about 40-70 grams per 10 seconds. Politeknik Negeri Malang 2022-10-28 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.polinema.ac.id/index.php/elposys/article/view/654 10.33795/elposys.v9i3.654 Elposys: Jurnal Sistem Kelistrikan; Vol. 9 No. 3 (2022): ELPOSYS vol.9 no.3 (2022); 179-182 2407-2338 2407-232X eng https://jurnal.polinema.ac.id/index.php/elposys/article/view/654/387 Copyright (c) 2022 Elposys: Jurnal Sistem Kelistrikan https://creativecommons.org/licenses/by-nc/4.0

oai:ojs2.jurnal.polinema.ac.id:article/655 2023-09-05T04:31:34Z elposys:ART

Perancangan Pembangkit Listrik Tenaga Surya (PLTS) untuk Suplai Daya Sistem Pemberian Pakan Ikan Otomatis Galuh Prawestri Citra Handani Binar Surya Gumilang Afidah Zuroida Solar cell, Solar Charge Controller, Battery, Inverter. In aquaculture production, the number of fish cultivated in freshwater ponds contributes up to 1.1 million tonnes. Catfish(Clarias sp.) is a type of freshwater fish that is quite popular in the cultivation process. The feeding system still has many shortcomings, suchas the amount of feed that is not regular and the timing of feeding which is prone to being irregular. The automatic feeding system requiresa continuous power supply without being interrupted by blackouts from the PLN electricity network. One of the power supply alternatives isto create a power generation system (PLTS). Based on the research results, the solar module capacity is 500 Wp for 1 polycrystalline typemodule, the solar charge controller rating is 20 A, the VRLA battery capacity is 200Ah 12 V KIJO, and the inverter capacity is 850 VA. Theresults of calculations and planning of PLTS can supply electricity with a load power of 1867 watts/hour. Politeknik Negeri Malang 2022-10-28 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.polinema.ac.id/index.php/elposys/article/view/655 10.33795/elposys.v9i3.655 Elposys: Jurnal Sistem Kelistrikan; Vol. 9 No. 3 (2022): ELPOSYS vol.9 no.3 (2022); 183-187 2407-2338 2407-232X eng https://jurnal.polinema.ac.id/index.php/elposys/article/view/655/386 Copyright (c) 2022 Elposys: Jurnal Sistem Kelistrikan https://creativecommons.org/licenses/by-nc/4.0

oai:ojs2.jurnal.polinema.ac.id:article/656 2023-09-05T05:07:50Z elposys:ART

Analisis Keandalan Sistem Distribusi 20kV Pada Penyulang Pujon PT. PLN (PERSERO) ULP Batu Wijaya Kusuma Ruwah Joto Mochammad Mieftah Awan Setiawan Maneuver, Drop voltage, Losess, SAIDI, SAIFI, Distribution System At PT. PLN (Persero) ULP Batu, Pujon feeder is one of the 9 feeders in the distribution system that supplies several areas in PT. PLN (Persero) ULP Batu. At the Pujon feeder, the number of disturbances that occurred from January to November 2021 occurred twenty-two times, with details of eighteen temporary disturbances and four permanent disturbances. The number of disturbances that often occur can affect the feeder who is working normally. This can cause voltage drops and power losses, causing the flow of electric power to be less than optimal and detrimental to customers or consumers. Because it requires maneuvering so that the disturbance does not spread to all feeders and cause one feeder to experience a blackout. Based on the problems that occur, maneuver analysis is needed to reduce the impact of disturbances on the Pujon feeder and to maintain the reliability value of the distribution system at PT. PLN (Persero) ULP BATU. Politeknik Negeri Malang 2022-10-28 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.polinema.ac.id/index.php/elposys/article/view/656 10.33795/elposys.v9i3.656 Elposys: Jurnal Sistem Kelistrikan; Vol. 9 No. 3 (2022): ELPOSYS vol.9 no.3 (2022); 188-193 2407-2338 2407-232X eng https://jurnal.polinema.ac.id/index.php/elposys/article/view/656/388 Copyright (c) 2022 Elposys: Jurnal Sistem Kelistrikan https://creativecommons.org/licenses/by-nc/4.0

oai:ojs2.jurnal.polinema.ac.id:article/658 2023-09-05T04:31:34Z elposys:ART

Penerapan Charger Controller type PWM pada Pembangkit Listrik Tenaga Pikohidro Wijaya Kusuma Anang Dasa Novfowan Harrij Mukti K. Alternative Energy, Charger Controller, PWM Type This study aims to design a PWMtype charger controller, to discover the performance of the PWM type controller, to determine the compatibility of the PWM type charger controller and MPPT, and to analyze the performance of the PWM type charger controller in the PLTPH in JLC. The method of analysis of this study uses field data and is tested on the PWM type charger controller and the MPPT type charger controller. From the data, the two charger controllers are compared. The results showed that the PWM and MPPT charger controller performed well to cut off the load current when the battery was full, the PWM and MPPT charger controller performed well to disconnect the load when the battery began to run out. The PWM and MPPT charger controllers have the same charging speed, and the MPPT charger controller has good efficiency in the PLTPH system. Politeknik Negeri Malang 2022-10-28 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.polinema.ac.id/index.php/elposys/article/view/658 10.33795/elposys.v9i3.658 Elposys: Jurnal Sistem Kelistrikan; Vol. 9 No. 3 (2022): ELPOSYS vol.9 no.3 (2022); 194-198 2407-2338 2407-232X eng https://jurnal.polinema.ac.id/index.php/elposys/article/view/658/389 Copyright (c) 2022 Elposys: Jurnal Sistem Kelistrikan https://creativecommons.org/licenses/by-nc/4.0

oai:ojs2.jurnal.polinema.ac.id:article/659 2023-09-05T04:31:34Z elposys:ART

Audit Energi dan Penilaian Kualitas Daya Pada Penerangan Jalan Umum Politeknik Negeri Malang Ahmad Hermawan Galih Hardika Sakti Ferdian Ronilaya Satria Luthfi Hermawan Public street lighting, lights, strong lighting, energy savings, energy audits Public Street Lighting (PSL) is an important thing for campus residents especially in night time activities. PJU also function as the beauty and comfort of college student when doing activities / organization at night and also influencing the results of carried active by college student. PSL also serve to ease visions for campus guard so that it is easier to see or supervise the area around the campus from thieves or individuals who want to behave crimefully at State Polytechnic of Malang Politeknik Negeri Malang 2022-10-28 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.polinema.ac.id/index.php/elposys/article/view/659 10.33795/elposys.v9i3.659 Elposys: Jurnal Sistem Kelistrikan; Vol. 9 No. 3 (2022): ELPOSYS vol.9 no.3 (2022); 199-204 2407-2338 2407-232X eng https://jurnal.polinema.ac.id/index.php/elposys/article/view/659/390 Copyright (c) 2022 Elposys: Jurnal Sistem Kelistrikan https://creativecommons.org/licenses/by-nc/4.0

oai:ojs2.jurnal.polinema.ac.id:article/661 2023-05-09T05:51:45Z elposys:ART

Analisis Komparasi Performa Bohlam LED Berbagai Merk Rahman Azis Prasojo Hafiz Furqoni Muhammad Fahmi Hakim Hari Kurnia Safitri Heri Sungkowo efficacy efficiency LED lamp luminate LED bulb are increasingly being adopted not only because of their good efficacy, but also because they are known to havehigh controllability. LED lighting has developed rapidly in recent years to achieve more efficient and reliable LED performance. Severalstudies have conducted experiments to obtain the characteristics and performance of LED lamps. However, study comparing theperformance of LED bulbs with various manufacturer and considering the price factor has not been found. In this study, the performancecomparison of six LED bulb manufacturers that are commonly found in the Indonesian market were conducted. Each brand is sampledfrom three rated powers. The results of this study show a weak correlation between the price and performance. Nonetheless, theperformance of LED bulb from different manufacturers were observed. Politeknik Negeri Malang 2020-10-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.polinema.ac.id/index.php/elposys/article/view/661 10.33795/elposys.v7i3.661 Elposys: Jurnal Sistem Kelistrikan; Vol. 7 No. 3 (2020): ELPOSYS vol.7 no.3 (2020); 1-6 2407-2338 2407-232X eng https://jurnal.polinema.ac.id/index.php/elposys/article/view/661/391 Copyright (c) 2023 Elposys: Jurnal Sistem Kelistrikan https://creativecommons.org/licenses/by-nc/4.0

oai:ojs2.jurnal.polinema.ac.id:article/662 2023-05-09T05:57:57Z elposys:ART

Real Time Monitoring System Dari Active Solar Photovoltaic Tracker Berbasis Internet Of Things Izra Bagus Kurniansyah Ferdian Ronilaya Muhammad Fahmi Hakim Monitoring system in Solar Power Plant, IoT, thingspeak There are still monitoring system in Solar Power Plant that do it manually. From here the idea emerged to develop a monitoring system using the IoT concept so that monitoring on Solar Power Plant that can be monitored just by looking at the website page, so current and voltage data can be easily monitored. This monitoring system is used to monitor the current and voltage of a solar power plant with solar cell capacities of 50WP, 80WP, and 100WP. In the application of using Solar Power Plant that, there is a current and voltage starting from the solar cell output, accumulator output, AC load input, and DC load input. The monitoring results that have been carried out will then be automatically sent to the Thingspeak application using the SIM800L Module. The thingspeak application will send data in the form of numbers and graphics in real time. By comparing the value of the measurement results on the Arduino and the Thingspeak application, the value of the percentage of reading errors on the measuring instrument is obtained. 3. In accordance with the tests that have been carried out, the percentage of read errors / errors can occur because of the reading accuracy of the current sensor measurements and AC-DC voltage sensors with different thingspeak applications. Each sensor has a percentage value of 0.16% AC & DC voltage sensor measurement error, 1.2% AC & DC current sensor, and 2.8% data transmission observation. Politeknik Negeri Malang 2020-10-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.polinema.ac.id/index.php/elposys/article/view/662 10.33795/elposys.v7i3.662 Elposys: Jurnal Sistem Kelistrikan; Vol. 7 No. 3 (2020): ELPOSYS vol.7 no.3 (2020); 7-13 2407-2338 2407-232X eng https://jurnal.polinema.ac.id/index.php/elposys/article/view/662/392 Copyright (c) 2020 Elposys: Jurnal Sistem Kelistrikan https://creativecommons.org/licenses/by-nc/4.0

oai:ojs2.jurnal.polinema.ac.id:article/663 2023-05-09T05:58:40Z elposys:ART

Optimasi Penyeimbangan Beban Gardu Distribusi Terhadap Penurunan Rugi Energi dengan Metode Seimbang Beban Seharian Muh. Hanif Haris Ahmad Rizal Sultan losses neutral current substations transformer unbalanced load One of the problems that often arise in distribution systems is load imbalance in meeting electric power needs. If there is a load imbalance in the 3 phase system, the neutral wire in the transformer will be energized. This will cause losses or can be said as unused energy and does not turn into rupiah. For this reason, it is necessary to balance the load of the distribution substations so that the losses that occur do not get bigger. Based on SPLN SE 17: 2014, it is said that the large percentage of load imbalance in distribution substations that can still be tolerated is below 20%, while for distribution substations with an imbalance percentage above 20%, load balancing is necessary. Based on the Transfomer Report of PT. PLN (Persero) ULP Maros, the percentage of load imbalance at the GT.MBS027 substation before load balancing is 44.783% and after load balancing there is a decrease in the percentage of imbalance to 6.867%.Likewise, the total value of energy losses before balancing is 80.802 kWh per day. After the load balancing is done, the amount of lossesdecreases to 2.95 kWh per day. So that you can save 77,852 kWh every day. If converted to a span of 30 days, it can be saved at a powerof 900 kVA of Rp. 3,157,677.12 and at a power of 1300 kVA and above it can be saved of Rp. 3,426,920.47. Politeknik Negeri Malang 2020-10-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.polinema.ac.id/index.php/elposys/article/view/663 10.33795/elposys.v7i3.663 Elposys: Jurnal Sistem Kelistrikan; Vol. 7 No. 3 (2020): ELPOSYS vol.7 no.3 (2020); 14-20 2407-2338 2407-232X eng https://jurnal.polinema.ac.id/index.php/elposys/article/view/663/393 Copyright (c) 2023 Elposys: Jurnal Sistem Kelistrikan https://creativecommons.org/licenses/by-nc/4.0

oai:ojs2.jurnal.polinema.ac.id:article/664 2023-05-09T03:24:51Z elposys:ART

oai:ojs2.jurnal.polinema.ac.id:article/665 2023-05-09T05:58:58Z elposys:ART

Kajian Manajemen Energi Listrik Pada Stasiun Pompa Air Mohammad Noor Hidayat Sigi Syah Wibowo Moch. Guntur Eka Prasetya pump, energy, manajemen, motor, VSD To operate the water pump, an electric motor is needed as the driving force. In order for the energy consumption needed to operate an electric motor to be regulated, it is necessary to manage electrical energy at the pump station. One example of a pump station is the local water company (PDAM) Unit Wendit Malang City. This unit consists of 3 pump stations namely Wendit 1, Wendit 2 and Wendit 3. These three parts are supplied by 2 transformers with a capacity of 1110 kVA for Wendit 2 and 1730 kVA for Wendit 1 and 3.From the results of power factor measurements in the three sections, it is known that the power factor value at the Wendit 3 pump station is 0.82. This value does not meet the PLN minimum standard, which is 0.85. To improve the low power factor, two recommendations were given, namely the installation of VSD (Variable Speed Drive) at the PDAM Unit Wendit 1 and 3 pump stations and the installation of a Capasitor Bank at the PDAM Unit Wendit 2 pump station.Based on the analysis, the power factor value PDAM Wendit 3, which was originally 0.82 increased to 0.9. In addition, there are savings in electricity consumption per month of 10.48% at PDAM Unit Wendit 1 and 3 and 28.32% at PDAM Unit Wendit 2. Politeknik Negeri Malang 2020-10-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.polinema.ac.id/index.php/elposys/article/view/665 10.33795/elposys.v7i3.665 Elposys: Jurnal Sistem Kelistrikan; Vol. 7 No. 3 (2020): ELPOSYS vol.7 no.3 (2020); 27-32 2407-2338 2407-232X eng https://jurnal.polinema.ac.id/index.php/elposys/article/view/665/395 Copyright (c) 2020 Elposys: Jurnal Sistem Kelistrikan https://creativecommons.org/licenses/by-nc/4.0

oai:ojs2.jurnal.polinema.ac.id:article/666 2023-05-09T05:59:42Z elposys:ART

Studi Pengaruh Pembebanan sebagai Dasar Scheduling Maintenance untuk Meminimalisir Susut Umur Transformator 1 GI Blimbing Ahmad Hermawan Rachmat Sutjipto Shafira Irmadhani Hidayat Florentina Berlian Suryaningtyas loss of life, scheduling maintenance, load Transformer 1’s load in Blimbing Substation has increased significantly each year. In 2016 until 2018 the load on Transformer 1 was 33.81%, 43.53%, and 71.75%. The amount of this transformer’s load will affect the hot spot temparature. Hot spot temperature is also affected by environmental temperature. In this study, load curve method was used then followed by calculate the loss life of transformer. From the calculation, known that the higher of hot spot temperature, the higher impact to loss life of transformer too. In 2018, the highest loading data was on November and it was obtained loss life of transformers by 0.649% per month, so it is estimated that this Transformer 1 at Blimbing Substation has a lifespan of 30 years 9 months. According to IEC 60076-7 normal life of transformers with loading under nominal is 20.55 years or 180000 hours. To minimize loss life of transformer or in other words extend the life time of transformer can be done by scheduling maintenance. Scheduling maintenance is the activity which monitoring the main transmission material on scheduled and provided a treatment based on the monitoring results. It can be concluded that the lifespan of Transformer 1 at Blimbing Substation can exceed the specified standard. The one of factors that affect this, is scheduling maintenance. Politeknik Negeri Malang 2020-10-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.polinema.ac.id/index.php/elposys/article/view/666 10.33795/elposys.v7i3.666 Elposys: Jurnal Sistem Kelistrikan; Vol. 7 No. 3 (2020): ELPOSYS vol.7 no.3 (2020); 33-38 2407-2338 2407-232X eng https://jurnal.polinema.ac.id/index.php/elposys/article/view/666/396 Copyright (c) 2020 Elposys: Jurnal Sistem Kelistrikan https://creativecommons.org/licenses/by-nc/4.0

oai:ojs2.jurnal.polinema.ac.id:article/667 2023-05-09T05:59:52Z elposys:ART

Pemasangan Instalasi Listrik Penerangan Untuk Masyarakat Binaan Disnaker di Pemkot Malang Sukamdi Mochammad Mieftah Anang Dasa Novfowan Rachmat Sutjipto Dhimas Dhesah Kharisma electrical installation, lighting, safety This study discusses the installation of lighting electrical installations that are appropriate and safe for the community assisted by the Manpower Office in Malang City Government. The existence of this research is expected to provide additional skills in installing lighting installations, to be used in working to install lighting installations that are correct and safe and in accordance with standards, so as to minimize work hazards or accidents due to errors due to installation and use. This research activity was carried out in the AK Building of Malang State Polytechnic, Jalan Soekarno Hatta Malang by Malang State Polytechnic. The research activity for lighting electrical installations was carried out using a direct practice method. These activities are the introduction of standard electrical installation equipment according to PUIL; Introduction of lighting equipment components such as lamps, switches, contact boxes; and Installation of fittings, contact boxes, pipes, cables, switches. From the results of the research which was carried out for several days, the results obtained were knowing the practical theory of lighting installation; know the use of PPE properly; know the components of the lighting installation; know the electric measuring instruments; knowing how to install lighting installation components correctly and safely; know what things are done before the object is connected to a power source; and can take measurements when the object has been connected to a power source. Politeknik Negeri Malang 2020-10-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.polinema.ac.id/index.php/elposys/article/view/667 10.33795/elposys.v7i3.667 Elposys: Jurnal Sistem Kelistrikan; Vol. 7 No. 3 (2020): ELPOSYS vol.7 no.3 (2020); 45-50 2407-2338 2407-232X eng https://jurnal.polinema.ac.id/index.php/elposys/article/view/667/397 Copyright (c) 2020 Elposys: Jurnal Sistem Kelistrikan https://creativecommons.org/licenses/by-nc/4.0

oai:ojs2.jurnal.polinema.ac.id:article/668 2023-05-09T06:00:09Z elposys:ART

Kajian Koordinasi Sistem Proteksi Pada Sistem Transmisi 70 kV GI Banaran Kediri Transmission Line Bay Pare Hafid Abibie Sulistyowati Ferdian Ronilaya substation, transmission, distance relay, OCR, directional earth fault, coordination The substation is one of the components in the electric power distribution system which plays a very important role because itis the connection between electricity services to customers. In the electric power distribution system, there are disturbances that often occur,one of which is a short circuit. For that, the way to overcome this is using the Distance Relay protection system, OCR / GFR and DEF. Thepurpose of writing this research is to determine the value of setting relay distance, setting Over Current Rele and Directional Earth Fault relayin order to secure the 70 kV transmission network connected to GI Banaran, which is then simulated using DigSILENT 15.1 software on thePare line by calculating symmetrical and asymmetrical disturbances. including 3-phase disturbance on February 1, 2018. The simulationresults show that the 3-phase disturbance occurs at Zone 1 relay distance of the Banaran Bay Pare substation with a trip time of 0.02 secondswith a fault impedance of 0.083 ohms below the relay impedance value of 0.887 ohms. The coordination between the distance relay on theside of the Banaran Bay Pare substation has worked well because there is no error reading the relay when it will cut off the disturbance. Politeknik Negeri Malang 2020-10-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.polinema.ac.id/index.php/elposys/article/view/668 10.33795/elposys.v7i3.668 Elposys: Jurnal Sistem Kelistrikan; Vol. 7 No. 3 (2020): ELPOSYS vol.7 no.3 (2020); 51-57 2407-2338 2407-232X eng https://jurnal.polinema.ac.id/index.php/elposys/article/view/668/398 Copyright (c) 2023 Elposys: Jurnal Sistem Kelistrikan https://creativecommons.org/licenses/by-nc/4.0

oai:ojs2.jurnal.polinema.ac.id:article/669 2023-05-09T06:00:17Z elposys:ART

Pemanfaatan Energi Matahari pada Solar Panel untuk Penerangan Jalan dan Jalur Hijau Di RW 12 Desa Landungsari Irwan Heryanto/Eryk Mohammad Noor Hidayat Sigit Setya Wiwaha Ika Noer Syamsiana solar panel lighting electrical installation To assist residents of RW 12 Desa Landungsari in supporting village facilities and infrastructure, especially the problem of street lighting. Where to apply to the related agency is not possible because it is only a rural area, so it is necessary to have the self-help of the residents in lighting up their area at night. This lighting will use solar cells as an energy source with a capacity of 50 Wp Off Grid system with a load of 12 Volt DC LED lights. This is because solar energy is a large enough energy available and is environmentally friendly.This research activity also includes community education on the importance of using solar energy as a source of electrical energy. Based on field testing, the average solar panel output voltage is 17 volts, the maximum charging current is 2.6 A and a load power of 30 watts consists of several LED lights. Politeknik Negeri Malang 2020-10-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.polinema.ac.id/index.php/elposys/article/view/669 10.33795/elposys.v7i3.669 Elposys: Jurnal Sistem Kelistrikan; Vol. 7 No. 3 (2020): ELPOSYS vol.7 no.3 (2020); 58-62 2407-2338 2407-232X eng https://jurnal.polinema.ac.id/index.php/elposys/article/view/669/399 Copyright (c) 2020 Elposys: Jurnal Sistem Kelistrikan https://creativecommons.org/licenses/by-nc/4.0

oai:ojs2.jurnal.polinema.ac.id:article/670 2023-05-09T06:00:26Z elposys:ART

Analisis Keamanan Instalasi Listrik Penerangan dan Pompa Air di Wilayah Perkampungan Ruwah Joto Harrij Mukti K. Tresna Umar Syamsuri Wijaya Kusuma Rahma Nur Amalia installation, lighting, pump, safety The use of lighting installations installed in the RW VIII Kelurahan Kesatrian has various aspects in terms of installation and use. To prevent losses due to the installation, the solution is to conduct electrical installationtraining. As a result of this training, it is hoped that the community can make efforts to install lighting or independentlyin their respective homes safely and correctly. The purpose of this Community Service is to provide knowledge andskills in installing electrical installations correctly and safely, given the use of household electrical appliances withvarious brands, each brand of household electrical equipment has different reliability, and utilization and operationthat require safety for users. Politeknik Negeri Malang 2020-10-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.polinema.ac.id/index.php/elposys/article/view/670 10.33795/elposys.v7i3.670 Elposys: Jurnal Sistem Kelistrikan; Vol. 7 No. 3 (2020): ELPOSYS vol.7 no.3 (2020); 63-68 2407-2338 2407-232X eng https://jurnal.polinema.ac.id/index.php/elposys/article/view/670/400 Copyright (c) 2020 Elposys: Jurnal Sistem Kelistrikan https://creativecommons.org/licenses/by-nc/4.0

oai:ojs2.jurnal.polinema.ac.id:article/671 2023-05-09T04:35:24Z elposys:ART

Analisis Power Quality Sistem Kelistrikan Pada Apartemen Malang City Point Zahra Mulia Sari Ahmad Hermawan Sapto Wibowo power quality, harmonics, Web – Based Power Quality Meter (PM 5110), ETAP 16.0.0 The use of equipment with a high non-linear load causes a decrease in the quality of power (Power Quality) at Malang City Point Apartment. Power quality analysis is an important requirement in the electrical system and needs special attention to save energyand costs. Savings can be achieved by reducing or even eliminating losses resulting from the use of non-linear loads. This thesis aims topresent the results of an analysis of power quality conditions at Malang City Point Apartments. This analysis includes voltage, current,voltage and current imbalance, power factor, current THD and measured voltage. The system is designed using Web - Based PowerQuality Meter (PM 5110) as a measurement tool, then the results are analyzed and compared with existing standards to evaluate powerquality in Malang City Point Apartments. Among the various power quality problems measured, it was found that the main problems ofpower quality in Malang City Point Apartments were the occurrence of overvoltages and current harmonic distortion. So it is necessary todo repairs on this to overcome the overvoltage by reducing the operation of equipment that has a large load and repairing neutralconductors. Furthermore, to reduce the system harmonics, it is designed by designing a single tuned passive filter and simulated using theETAP software version 16.0.0 Politeknik Negeri Malang 2020-10-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.polinema.ac.id/index.php/elposys/article/view/671 10.33795/elposys.v7i3.671 Elposys: Jurnal Sistem Kelistrikan; Vol. 7 No. 3 (2020): ELPOSYS vol.7 no.3 (2020); 69-74 2407-2338 2407-232X eng https://jurnal.polinema.ac.id/index.php/elposys/article/view/671/401 Copyright (c) 2023 Elposys: Jurnal Sistem Kelistrikan https://creativecommons.org/licenses/by-nc/4.0

oai:ojs2.jurnal.polinema.ac.id:article/714 2023-06-14T07:18:35Z elposys:ART

Analisa Performa Motor Induksi-Pompa Bahan Bakar Minyak pada Pekerjaan Technical Due Dilligence PT. ABC Safarudin, Yanuar Mahfudz Terminal Due Dilligence pompa bbm termograf motor induksi Pada artikel ini akan dibahas mengenai hasil investigasi dari motor pompa pada terminal bahan bakar minyak (TBBM) di PT. ABC sebelum dilakukan akusisi oleh PT. XYZ. Empat buah motor pompa akan dianalisa pada artikel ini melalui metode asesmen terhadap dokumen, observasi visual, pengukuran parameter kinerja motor, dan dan pengamatan termograf. Setelah melakukan pengamatan, didapatkan hasil bahwa keempat motor pompa dalam kondisi baik dan dapat beroperasi dengan normal. Hanya terdapat beberapa temuan minor antara lain terjadi keretakan pada terminal box, ganjalan pada pipa sisi suction, bagian pompa yang tidak bersih, tutup pelindung yang telah berlubang. Kemudian ada satu temuan yang patut menjadi perhatian yakni posisi salah satu pompa yang sangat dekat dengan titik resiko tinggi kebakaran. Politeknik Negeri Malang 2023-03-06 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.polinema.ac.id/index.php/elposys/article/view/714 10.33795/elposys.v10i1.714 Elposys: Jurnal Sistem Kelistrikan; Vol. 10 No. 1 (2023): ELPOSYS vol.10 no.1 (2023); 82-87 2407-2338 2407-232X eng https://jurnal.polinema.ac.id/index.php/elposys/article/view/714/879 Copyright (c) 2023 Elposys: Jurnal Sistem Kelistrikan https://creativecommons.org/licenses/by-nc/4.0

oai:ojs2.jurnal.polinema.ac.id:article/715 2023-06-14T07:18:35Z elposys:ART

Sistem Monitoring Online Dan Analisis Perfomansi Plts Panel Surya Monocrystalline 100 Wp Berbasis Web Duanaputri, Rohmanita Heryanto/Eryk, Irwan Sajidan, Muhammad Firas Ayusta Lukita Wardani Hakim, Muhammad Fahmi Performansi Web Monitoring PLTS. In this modern life, people's dependence on energy sources, especially electrical energy, has led to innovation in the use of cheap alternative energy sources that are environmentally friendly such as solar energy, one of which is PLTS. To support PLTS performance, a web-based monitoring system is needed for remote monitoring in monitoring PLTS performance, the data displayed is the result of measurements by voltage and current sensors installed in each solar panel on the PLTS performance detector. In this case, it is necessary to develop a Web-based monitoring system to help improve the efficiency of performance maintenance on 100 wp monocrystalline panels. By using the INA260 sensor in the form of a digital DC sensor that can measure a maximum current of 15 A, a maximum voltage of 36 v, and DC power and the DS18B20 sensor is a digital sensor that can measure the surface temperature of the panel. Sensor readings can be displayed offline via the HMI LCD while online readings can be displayed in the form of a Web which has a graphical display feature for each parameter and downloads data in the form of a .csv file as a feature that supports data analysis. The results of the sensor validation test or calibration using a measuring instrument have an average error sensor reading of 0.34 %. The average current sensor error is 0.63%, and the power sensor error average is 0.56%, while the average panel surface temperature sensor error is 0.34% Politeknik Negeri Malang 2023-03-06 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.polinema.ac.id/index.php/elposys/article/view/715 10.33795/elposys.v10i1.715 Elposys: Jurnal Sistem Kelistrikan; Vol. 10 No. 1 (2023): ELPOSYS vol.10 no.1 (2023); 1-6 2407-2338 2407-232X eng https://jurnal.polinema.ac.id/index.php/elposys/article/view/715/865 Copyright (c) 2023 Elposys: Jurnal Sistem Kelistrikan https://creativecommons.org/licenses/by-nc/4.0

oai:ojs2.jurnal.polinema.ac.id:article/716 2023-06-14T07:18:35Z elposys:ART

Alternatif Penanganan Losses Akibat Ketidakseimbangan Beban Pada Trafo Distribusi Novfowan, Anang Dasa Mieftah, Mochammad Kusuma, Wijaya Neutral Current Losses Customer Phase Load Balancing The unbalanced load on distribution transformers is mostly caused of connecting new customers and changing patterns of electricity usage in the community. The impact of the unbalanced load is the emergence of a current flowing on the transformer neutral conductor that causes energy losses. Load balancing of distribution transformers is commonly done by technicians, but the implementation takes quite a long time and is repeated, sometimes up to 4-5 times to get the appropriate results. This is more due to less valid customer phase data. Customer phase verification is needed to accelerate the load balancing process in an effort to reduce losses in distribution transformers. With valid customer phase data, just one stage of load balancing can reduce losses by 1.06%.. Politeknik Negeri Malang 2023-03-06 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.polinema.ac.id/index.php/elposys/article/view/716 10.33795/elposys.v10i1.716 Elposys: Jurnal Sistem Kelistrikan; Vol. 10 No. 1 (2023): ELPOSYS vol.10 no.1 (2023); 54-56 2407-2338 2407-232X eng https://jurnal.polinema.ac.id/index.php/elposys/article/view/716/874 Copyright (c) 2023 Elposys: Jurnal Sistem Kelistrikan https://creativecommons.org/licenses/by-nc/4.0

oai:ojs2.jurnal.polinema.ac.id:article/717 2023-06-14T07:18:35Z elposys:ART

Implementasi Metode Scoring Matrix dalam Menentukan Indeks Kondisi Minyak Isolasi pada Transformator Daya 150 kV Prasojo, Rahman Azis Safarina, Liska Islam, Agung Fiqh Paramonta Duanaputri, Rohmanita Mieftah, Mochammad Yulianto, Eko Transformer Assessment Index Oil Insulation Condition Monitoring and Diagnosis Scoring matrix Transformers are critical equipment in electrical power system which assist in transmitting electrical energy from generators to consumers. Oil insulation is one of the key component in power transformer. Poor quality of oil insulation can be fatal to the transformer, especially when a disturbance occurs. Oil insulation can affect the aging of power transformers and the failure can disturb the continuity of electrical energy supplied to consumers. There are three things that affect the condition of transformer oil insulation, namely chemical, electrical, and physical. The test results of oil insulation parameters that were collected was assessed individually, such as Interfacial Tension (IFT), colour, breakdown voltage (BDV), acidity, and water content. Then, the condition assessment of power transformer oil insulation using a scoring matrix method proposed in CIGRE TB 761 was performed to determine the assessment index of oil insulation conditions of two 150 kV power transformers based on the results of various oil testing. Lastly, recommended action is provided based on the analysis. Politeknik Negeri Malang 2023-03-06 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.polinema.ac.id/index.php/elposys/article/view/717 10.33795/elposys.v10i1.717 Elposys: Jurnal Sistem Kelistrikan; Vol. 10 No. 1 (2023): ELPOSYS vol.10 no.1 (2023); 36-41 2407-2338 2407-232X eng https://jurnal.polinema.ac.id/index.php/elposys/article/view/717/871 Copyright (c) 2023 Elposys: Jurnal Sistem Kelistrikan https://creativecommons.org/licenses/by-nc/4.0

oai:ojs2.jurnal.polinema.ac.id:article/718 2023-06-14T07:18:35Z elposys:ART

Analisis Penstabilan Tegangan Output Generator Induksi 3 Fasa Sucipto, Rachmat Syamsuri, Tresna Umar Epiwardi Generator 3 Phase Voltage output One of the alternative generators in supplying electrical energy is a 3-phase generator made from a 3-phase slip ring induction motor, after which the rotor winding is supplied with a DC source and rotated using a prime mover. The problem arises because of the large % voltage regulation of a 3-phase generator when it is under load. This is because the induction generator has a relatively larger voltage loss when loaded with a certain load compared to a 3-phase synchronous generator. To overcome these conditions, there are several ways that can be used to stabilize the voltage from the generator, namely: setting the excitation current from the generator, setting the connection on the rotor windings (using 2 windings or using 3 rotor windings) and a combination of the two steps above. . Based on the results of experiments that have been carried out, it is known that the method of stabilizing the output voltage by setting the rotor winding connection is less effective than setting the excitation current because it turns out that the results of changing the output voltage are not too significant compared to changing the generator excitation current. In addition, it is also known that the stabilization of the output voltage from an inductive load will require a DC voltage that is greater than when under a resistive load because of the large difference in losses. Politeknik Negeri Malang 2023-03-06 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.polinema.ac.id/index.php/elposys/article/view/718 10.33795/elposys.v10i1.718 Elposys: Jurnal Sistem Kelistrikan; Vol. 10 No. 1 (2023): ELPOSYS vol.10 no.1 (2023); 24-29 2407-2338 2407-232X eng https://jurnal.polinema.ac.id/index.php/elposys/article/view/718/869 Copyright (c) 2023 Elposys: Jurnal Sistem Kelistrikan https://creativecommons.org/licenses/by-nc/4.0

oai:ojs2.jurnal.polinema.ac.id:article/719 2023-06-14T07:18:35Z elposys:ART

Analisis Load Sharing dan Load Shedding Operasi Paralel Generator Singkron PG Kebun Agung Epiwardi Sucipto, Rachmat Syamsuri, Tresna Umar Load Shedding Frequency Speed ​​Droop Load Sharing The Kebon Agung sugar factory has two power supplies, namely from the PLTU Kebon Agung sugar factory itself and from PLN. There are 3 synchronized generators at the Kebun Agung Sugar Factory, with a power of 4.5 MW on generators 1,2 and 1,6 MVA on generator 3. The difference in power between generators 1,2 and 3 causes frequent interference with generator 3 because it has less power. This Final Project analyzes load sharing and load shedding using MATLAB Simulink R2013a. Through these simulations it is shown the division of the load from each generator during normal conditions or when one generator is released. see the effect of the generator that has been set to speed droop when load sharing conditions, the speed of droop is varied so that it knows the characteristics of the generator that has been set speed droop. In the Final Project, the simulation value and calculation of the  speed droop setting value in the Kebon Agung sugar factory is ideal. Because ideally the setting of speed droop in the settings so it is not too sensitive and not too long in responding to changes in load that occur in the system. Politeknik Negeri Malang 2023-03-06 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.polinema.ac.id/index.php/elposys/article/view/719 10.33795/elposys.v10i1.719 Elposys: Jurnal Sistem Kelistrikan; Vol. 10 No. 1 (2023): ELPOSYS vol.10 no.1 (2023); 42-47 2407-2338 2407-232X eng https://jurnal.polinema.ac.id/index.php/elposys/article/view/719/872 Copyright (c) 2023 Elposys: Jurnal Sistem Kelistrikan https://creativecommons.org/licenses/by-nc/4.0

oai:ojs2.jurnal.polinema.ac.id:article/915 2025-10-07T01:52:13Z elposys:ART

Kapasitor Shunt Sebagai Korektor Tegangan Bus di Gardu Induk Muhammad Fahmi Hakim Slamet Nurhadi Hanifiyah Darna Fidya Amaral Diktiaz, Aggahra Amimah, Anggi Satria Luthfi Hermawan busbar, reactive power, shunt capacitor, substation, voltage drop, voltage improvement Segoromadu Substation has two busbars, namely busbar A and busbar B. Busbar A which has nominal voltage of 150 kV has reached a voltage value of 129.38 kV or experienced voltage drop of 13.75%. The percentage of this voltage drop exceeds a predetermined standard. Therefore, it is necessary to design a shunt capacitor which is then modeled and simulated. Based on calculation and analysis result, capacity of shunt capacitor that should be installed on Bus A is 50 MVAR. After the shunt capacitor was installed, based on simulation, there was an increase of 4.87 kV so the voltage afterward became 139.67 kV or only experienced a voltage drop of 3.19%. So, by installing a shunt capacitor with capacity of 50 MVAR, it can increase busbar voltage of the substation. The shunt capacitor also increases the value of reactive power and current flowing to the busbar. Politeknik Negeri Malang 2023-03-06 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.polinema.ac.id/index.php/elposys/article/view/915 10.33795/elposys.v10i1.915 Elposys: Jurnal Sistem Kelistrikan; Vol. 10 No. 1 (2023): ELPOSYS vol.10 no.1 (2023); 30-35 2407-2338 2407-232X eng https://jurnal.polinema.ac.id/index.php/elposys/article/view/915/870 Copyright (c) 2023 Elposys: Jurnal Sistem Kelistrikan https://creativecommons.org/licenses/by-nc/4.0

oai:ojs2.jurnal.polinema.ac.id:article/916 2023-06-14T07:18:35Z elposys:ART

Upaya Peningkatan Keandalan Penyulang dengan Manuver Jaringan Slamet Nurhadi Muhammad Fahmi Hakim Ruwah Joto CO Branch, ENS, Keandalan, Manuver jaringan, Penyulang, SAIDI, SAIFI The Tlogosari feeder was disturbed 20 times so that the reliability of system wasn’t said to be good. The purpose of this research was to make efforts to increase reliability and reduce ENS by maneuvering the network and adding CO Branch. Hoped that after these efforts the reliability level of Tlogosari Feeder will be better and ENS will be as minimal as possible. The network maneuver is carried out by delegating part of Tlogosari Feeder load when it experiences a disturbance to the nearest feeders on the condition that the total load current after the maneuver doesn’t exceed the current setting and conductor ampacity. The addition of CO Branch is based on fault data to localize fault points to reduce transformer outages. After performing network maneuvers and adding CO Branch in the sub-networks, it was found that the SAIDI and SAIFI values were improved and the ENS was reduced. Network maneuvering and addition of CO Branch are quite effective in implementing the Tlogosari Feeder. Politeknik Negeri Malang 2023-03-06 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.polinema.ac.id/index.php/elposys/article/view/916 10.33795/elposys.v10i1.916 Elposys: Jurnal Sistem Kelistrikan; Vol. 10 No. 1 (2023): ELPOSYS vol.10 no.1 (2023); 88-93 2407-2338 2407-232X eng https://jurnal.polinema.ac.id/index.php/elposys/article/view/916/880 Copyright (c) 2023 Elposys: Jurnal Sistem Kelistrikan https://creativecommons.org/licenses/by-nc/4.0

oai:ojs2.jurnal.polinema.ac.id:article/970 2023-09-05T04:31:34Z elposys:ART

Analisis Perbaikan Sistem Pentanahan Tower 70 kV pada Transmisi Wlingi - Blitar Prasetyo, Budi Eko Hermawan, Ahmad Azizah, Safira Ground Resistance ATP Draw Electrode Lightning Arrester Traveling Wave BIL (Basic Insulation Level) Transformer High Voltage Air Line (in Indonesian known as SUTT) is defined as part of an electric power transmission network that is likely to be struck by lightning. This condition may lead to back flashover (BFO) phenomenon if the grounding value in the transmission is found to be high (>5 Ohms) and may also generate equipment failure. This research was intended to analyze the grounding improvement in tower T17, so that traveling-wave voltages may not result in failure of the main equipment at the substation, specifically the transformer. The value of the traveling wave at the substation was measured through simulation by means of the ATP Draw application in tower T17 to the substation. The grounding value may be reduced by increasing and widening the distance between the electrodes. The value obtained by modeling 4 electrodes with a distance of 0.5 meter was amounted to 1.73 Ohms. Furthermore, modeling 3 electrodes with a distance of 1 meter had successfully generated a value of 1.06 Ohm, and a value of 1.67 Ohm was also successfully obtained through modeling 2 electrodes with a distance of 2 meters. The ground resistance with a value of 67.05 Ohms that has not been repaired will lead to back flashover (BFO) caused by lightning strikes. However, this may be reduced properly with a lightning arrester which is capable of cutting the overvoltage at the substation, so that the voltage entering the transformer is below the BIL (Basic Insulation Level) value. Politeknik Negeri Malang 2022-10-28 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.polinema.ac.id/index.php/elposys/article/view/970 10.33795/elposys.v9i3.970 Elposys: Jurnal Sistem Kelistrikan; Vol. 9 No. 3 (2022): ELPOSYS vol.9 no.3 (2022); 205-209 2407-2338 2407-232X eng https://jurnal.polinema.ac.id/index.php/elposys/article/view/970/660 Copyright (c) 2022 Elposys: Jurnal Sistem Kelistrikan https://creativecommons.org/licenses/by-nc/4.0

oai:ojs2.jurnal.polinema.ac.id:article/975 2023-07-27T07:01:00Z elposys:ART

Analisa Proteksi Gangguan Petir Pada SUTT 70 KV Antara GI Kebonagung - Polehan Harijanto, Priya Surya Awan Setiawan Prasetyo, Budi Eko SUTT Perlindungan Petir Surja BIL Arrester In maintaining the continuity of its distribution, routine maintenance and a good security system are needed to anticipate abnormal conditions. This study analyzes lightning disturbances along the 70 kV transmission line from the Kebonagung substation to the Polehan substation with different strike point conditions, as well as studies the condition of the equipment when a direct strike occurs in the 70 kV transmission. From the results of the analysis when a direct strike on the phase wire of 1098 kV goes to the Kebonagung Substation, the arrester will work to throw the overvoltage to the ground, so the lightning voltage that reaches the Kebonagung Substation equipment is less than 60 kV so that the equipment at the Kebonagung Substation is protected from disturbance lightning. However, if the arrester does not work when there is a direct strike, then the damaged equipment is CVT (739.26 kV), Ds Line (545.56 kV) and CT (378.274 kV), because the BIL of the equipment is smaller than the lightning voltage that reaches and causing the system to shut down. When an indirect strike of 97.068 kV goes to the Kebonagung substation, the arrester will work and the equipment at the Kebonagung substation is protected. However, if the arrester does not work, the equipment is still protected because the CVT (65.347 kV), DS Line (16.95 kV) and CT (4.230 kV), the BIL of each equipment is higher than the incoming lightning voltage. Politeknik Negeri Malang 2023-03-06 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.polinema.ac.id/index.php/elposys/article/view/975 10.33795/elposys.v10i1.975 Elposys: Jurnal Sistem Kelistrikan; Vol. 10 No. 1 (2023): ELPOSYS vol.10 no.1 (2023); 13-18 2407-2338 2407-232X eng https://jurnal.polinema.ac.id/index.php/elposys/article/view/975/867 Copyright (c) 2023 Elposys: Jurnal Sistem Kelistrikan https://creativecommons.org/licenses/by-nc/4.0

oai:ojs2.jurnal.polinema.ac.id:article/1006 2023-06-14T07:18:35Z elposys:ART

Perancangan Dan Implementasi Half Bridge Dc – Dc Converter Dengan Kendali Arus Hysteresis Saputra, Masramdhani Yustiawan, Gian Fikih Ridzki, Imron Wiwaha, Sigit Setya Gumilang, Binar Surya DC – DC Converter Buck Converter Current Hysterisis Half Bridge DC-DC Converter is a direct voltage (DC) power supply device that is produced by converting DC input voltage into a lower or higher DC output voltage. In its development, the application of DC-DC Converter allows an electronic device to function with a small energy source, where the output voltage can be varied as needed. DC-DC Converters have been widely developed because they have various advantages, including: simpler form and has high efficiency. In this thesis, an Arduino Mega 2560-based current controller will be implemented. The type of current controller implemented is hysteresis current control with the well-known, tested and proven considerations. Current control works if the inductor current rises from the lower limit of the hysteresis band to the upper limit then the switch will be turned off (inductor current above the upper reference Ip.Ref) and if this current drops from the upper limit to the lower limit the switch will be turned on (current inductor under low frequency Iv.Ref). This current control also has advantages in overcurrent protection such as when there is a short circuit in the load. Politeknik Negeri Malang 2023-03-06 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.polinema.ac.id/index.php/elposys/article/view/1006 10.33795/elposys.v10i1.1006 Elposys: Jurnal Sistem Kelistrikan; Vol. 10 No. 1 (2023): ELPOSYS vol.10 no.1 (2023); 72-77 2407-2338 2407-232X eng https://jurnal.polinema.ac.id/index.php/elposys/article/view/1006/877 Copyright (c) 2023 Elposys: Jurnal Sistem Kelistrikan https://creativecommons.org/licenses/by-nc/4.0

oai:ojs2.jurnal.polinema.ac.id:article/1007 2023-06-14T07:18:35Z elposys:ART

Desain Dan Implementasi Transformator Satu-Fasa Dry-Type Dengan Pendekatan Core Geometry Saputra, Masramdhani Santoso, Asfari Hariz Ridzki, Imron Wiwaha, Sigit Setya Anindyasani, Erlinda Toroid Transformer current voltage Email Wire Energy is one of the most important needs for humans to support daily life, especially for developing countries such as Indonesia. One of the energies needed in human life is electrical energy. For this reason, innovation was developed, namely a dry-type Single-Phase Transformer with a core geometry approach developed in the AL 1.01 building of the State Polytechnic of Malang. Calculations performed on the tool are to calculate the value of windings per volt (GPV) and the number of primary and secondary windings. Its manufacture uses a toroid-shaped transformer core. The core specification of the transformer is an outer diameter of 15cm, then an inner diameter of 5.8 cm, and a height of 7cm. The toroid transformer core that will be used is previously isolated from the transformer first to avoid leakage current which can cause heat in the transformer core. The density of the email wire from the transformer winding both from the primary and secondary windings will affect the performance of the transformer, the more tightly the email Wire is wrapped in the transformer core, the vibration generated from the transformer will be smaller, this will affect the voltage losses later in the transformer testing phase carried out using different beaban, each load changes the efficiency of the transformer that has been made will also change, this is because each load tested has different factors. Politeknik Negeri Malang 2023-03-06 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.polinema.ac.id/index.php/elposys/article/view/1007 10.33795/elposys.v10i1.1007 Elposys: Jurnal Sistem Kelistrikan; Vol. 10 No. 1 (2023): ELPOSYS vol.10 no.1 (2023); 7-12 2407-2338 2407-232X eng https://jurnal.polinema.ac.id/index.php/elposys/article/view/1007/866 Copyright (c) 2023 Elposys: Jurnal Sistem Kelistrikan https://creativecommons.org/licenses/by-nc/4.0

oai:ojs2.jurnal.polinema.ac.id:article/1008 2023-06-14T07:18:35Z elposys:ART

Perancangan dan Pembuatan Prototype Mesin CNC Laser Engravir Dengan Mikrokontroler sebagai Komunikasi Wireless Syamsuri, Tresna Umar Sucipto, Rachmat Epiwardi Craft Souvenirs CNC Laser Engraver Microcontroller. To support the creative economy, creative ideas are needed which are then transformed into concrete reality. One of the concrete creative ideas is art craftsmen, for example, painting, sculpture, three-dimensional art, sculpture and many more. The promising craft today is the souvenir craft, which has various forms and functions. In this research, the authors specialize in the craft of engraved souvenirs where most of these craftsmen still work on their crafts using conventional media. The purpose of this research is to design and manufacture a prototype CNC Laser Engraver machine with a microcontroller with wireless data communication which is expected to help improve the quality of the production of souvenir craftsmen. The method used is an experimental method in the form of designing, manufacturing and testing the mechanical work of each linear axis of the CNC Laser Engraver machine. With this research it is hoped that a control system scheme for a prototype CNC Laser Engraver machine can be obtained, to be applied to a real CNC Laser Engraver machine. From the results of testing this machine prototype, some data was obtained, namely a machine with three axes of motion, a microcontroller for wireless communication, a laser module with a diode capacity of 1000 mW and a maximum work area of 38 mm x 38 mm x 20 mm, which can help small industries and businesses. small and medium enterprises in the production process of various forms of creative carvings for various materials Politeknik Negeri Malang 2023-03-06 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.polinema.ac.id/index.php/elposys/article/view/1008 10.33795/elposys.v10i1.1008 Elposys: Jurnal Sistem Kelistrikan; Vol. 10 No. 1 (2023): ELPOSYS vol.10 no.1 (2023); 60-65 2407-2338 2407-232X eng https://jurnal.polinema.ac.id/index.php/elposys/article/view/1008/875 Copyright (c) 2023 Elposys: Jurnal Sistem Kelistrikan https://creativecommons.org/licenses/by-nc/4.0

oai:ojs2.jurnal.polinema.ac.id:article/1009 2023-06-14T07:18:35Z elposys:ART

PLTS sebagai Backup Supply pada Plant Hidroponik Nutrient Film Tehcnique (NFT) Berbasis IoT Santoso, Asfari Hariz Saputra, Masramdhani Hamka, Faradila Nur Rizqy Hidroponik NFT PLTS Back Up Supply Indonesia is geographically located on the equator, which has very strong solar radiation and high rainfall, making it suitable for farming. Hydroponics is used as a growing medium for planting without using large areas of land by utilizing water and prioritizing the nutritional needs of plants. NFT is a hydroponic method that is easy to implement and is quite effective for plants. However, this method requires a cycle that cannot be stopped, so it requires a pump that must be on all the time. Therefore, a backup supply is needed that can guarantee the availability or continuity of the supply of electricity to the load by using an Automatic Transfer Switch (ATS) which keeps the system running if the PLN goes out by using PLTS and can be monitored and controlled at any time using Internet of things (IoT) technology. ). From the results of trials and analysis carried out that the performance of the system when in automatic mode, that is, when the battery reaches a value of 11.3 Volts, it will switch to the PLN supply. The supply from PLTS will change to PLN's supply automatically with a predetermined time, namely from 09.00 WIB to 15.00 WIB. If PLN experiences a blackout, it will switch to the PLTS source until PLN is back on. Politeknik Negeri Malang 2023-03-06 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.polinema.ac.id/index.php/elposys/article/view/1009 10.33795/elposys.v10i1.1009 Elposys: Jurnal Sistem Kelistrikan; Vol. 10 No. 1 (2023): ELPOSYS vol.10 no.1 (2023); 19-23 2407-2338 2407-232X eng https://jurnal.polinema.ac.id/index.php/elposys/article/view/1009/868 Copyright (c) 2023 Elposys: Jurnal Sistem Kelistrikan https://creativecommons.org/licenses/by-nc/4.0

oai:ojs2.jurnal.polinema.ac.id:article/1010 2023-06-14T07:18:35Z elposys:ART

Kajian Teknis Pemeliharaan Transformator Arus Pada Gardu Induk Pltu Tanjung Awar – Awar Babat Ananto, Rhezal Agung Arifin, Kalam Syamsul Hermawan, Ahmad Effendrik, Popong current transformer insulation resistance test and tangent delta test The current transformer is an electric power instrumentation device that functions to change a higher current value to a lower value for protection and measurement purposes. Field conditions and service life cause the current transformer to decrease and not function. Therefore, it is important to do this research to determine the current condition of the current transformer. The method used to obtain current transformer quality indicators is the insulation resistance test method and the tangent delta test method. The results of testing the insulation resistance of current transformers at GI Tanjung Awar Awar Babat in 2020-2021 using the VDE standard (Catalogue 228/4) and IEEE std 43-2000 show that the insulation resistance value of all current transformers has increased by an average of 81900Ω from the previous period but, this value is still in good criteria, namely 170 + 1 MΩ and there is an increase in the current transformer grounding resistance test from the previous period with an average of 0.176 however, according to the PLN book 605.K/DIR/2010 the results of the ground resistance test have good criteria. of < 1. Based on ANSI C 57.12.90 and IEEE C57.152-2013 standards, the tan delta test results are still in good condition because the tan delta value is not more than 0.5%. Current transformer tan delta testing in 2020-2021 has decreased, indicating that the insulation performance of current transformers in 2021 is better than in 2020. Politeknik Negeri Malang 2023-03-06 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.polinema.ac.id/index.php/elposys/article/view/1010 10.33795/elposys.v10i1.1010 Elposys: Jurnal Sistem Kelistrikan; Vol. 10 No. 1 (2023): ELPOSYS vol.10 no.1 (2023); 66-71 2407-2338 2407-232X eng https://jurnal.polinema.ac.id/index.php/elposys/article/view/1010/876 Copyright (c) 2023 Elposys: Jurnal Sistem Kelistrikan https://creativecommons.org/licenses/by-nc/4.0

oai:ojs2.jurnal.polinema.ac.id:article/1025 2023-06-14T07:18:35Z elposys:ART

Perencanaan Desain Single Tuned Passive Filter Harmonisa Pada AC Microgrid Turbin Tenaga Angin Ananto, Rhezal Agung Duanaputri, Rohmanita Santoso, Asfari Hariz Hakim, Muhammad Fahmi harmonics microgrid power quality passive harmonics filter wind turbine A microgrid usually consists of small-scale of thermal generation sources and other distributed energy resources (DER) such as photovoltaic, wind power, and fuel cells to serve its loads. In this paper microgirid AC system using wind turbines. Microgrid AC systems use an inverter which is a source of harmonics for need to convert to AC system Load . And the system will also get the source of harmonics when the system is connected to the non-linear load. wind turbines can generate harmonics also. So that it can degrade the quality of the power of the system. In addition the power factor, and voltage system is not good. So thesystem mitigate solution is using a passive filter tuned to the affected bus. The simulation results show that the design singgle tune passive filters can be effective and have a good performance in mitigating microgrid system Politeknik Negeri Malang 2023-03-06 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.polinema.ac.id/index.php/elposys/article/view/1025 10.33795/elposys.v10i1.1025 Elposys: Jurnal Sistem Kelistrikan; Vol. 10 No. 1 (2023): ELPOSYS vol.10 no.1 (2023); 78-81 2407-2338 2407-232X eng https://jurnal.polinema.ac.id/index.php/elposys/article/view/1025/878 Copyright (c) 2023 Elposys: Jurnal Sistem Kelistrikan https://creativecommons.org/licenses/by-nc/4.0

oai:ojs2.jurnal.polinema.ac.id:article/1078 2023-06-14T07:18:35Z elposys:ART

Desain Simulasi dan Analisa Closed Loop Boost Converter Terintegrasi Solar PV Berbasis PID Amalia, Rahma Nur Wijaya Kusuma Solar PV, Boost Converter, Duty Cycle The tendency for the price of using solar PV (photovoltaic) to become cheaper means that the portion of the use of this solar energy source is encouraged to be larger along with the addition of the portion of renewable energy (EBT) generators based on PLN's 2021-2030 Electricity Supply Business Plan (RUPTL). As a step to mitigate this problem, a power electronics circuit application is needed in the form of a boost converter or what can be called a step-up DC-DC converter. In this study, the boost converter design modeling is made a closed loop. There is feedback by adding a PID controller to adjust the duty cycle as a function of switching on or off MOSFET so that the output voltage is as desired (setpoint) and adjusts to needs of load. Open-loop design modeling is also included as a comparison. The design stage begins with determining the circuit design, calculating component specifications, and simulating using MATLAB R2013a software and hardware implementation. From the test results, it was found that the boost converter can increase the solar PV voltage varies (17.34-19.13 Volts). In the closed loop boost converter circuit with a constant load of 129.96 Ω with varying duty-cycle value set by PID controller with value of Kp=0.005 Ki=9.75 Kd=0.00000029, the average output voltage is 36. 0067 Volts and stable at the desired setpoint of 36 Volts. Politeknik Negeri Malang 2023-03-06 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.polinema.ac.id/index.php/elposys/article/view/1078 10.33795/elposys.v10i1.1078 Elposys: Jurnal Sistem Kelistrikan; Vol. 10 No. 1 (2023): ELPOSYS vol.10 no.1 (2023); 48-53 2407-2338 2407-232X eng https://jurnal.polinema.ac.id/index.php/elposys/article/view/1078/873 Copyright (c) 2023 Elposys: Jurnal Sistem Kelistrikan https://creativecommons.org/licenses/by-nc/4.0

oai:ojs2.jurnal.polinema.ac.id:article/1163 2023-05-17T07:19:34Z elposys:ART

Analisis Performance Jangka Pendek Pembangkit Listrik Tenaga Surya dengan Sistem Stand-alone System Ananto, Rhezal Agung Santoso, Asfari Hariz Photovoltaic Converter Sun Irradiance Stand-alone performance photovoltaic Renewable energy power generation technology continues to develop every year and energy demand continues toincrease. Reducing carbon emissions in accordance with international carbon emission policies (including Indonesia). The renewable energy target is targeted to increase every year in accordance with the national renewable energy mix policy. Renewable energy has characteristics that fluctuate over time, so continuous measurement data is needed. This data is used for the design of renewable energy in Indonesia in the future. To analyze the performance of a solar power plant, measurement variables are needed. Photovoltaic analysis requires measurement of variable voltage, current, power and energy. Measurement variables are measurement variables from photovoltaic and measurement variables from solar energy. The measurement of solar energy is measured in Watts per square meter. The measurement method is a direct measurement in the territory of Indonesia. The measurement method is the measurement at sunrise to sunset. The measurement results are used for performance analysis. The measurements result are used for photovoltaic efficiency analysis. Politeknik Negeri Malang 2023-05-17 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.polinema.ac.id/index.php/elposys/article/view/1163 10.33795/elposys.v8i1.1163 Elposys: Jurnal Sistem Kelistrikan; Vol. 8 No. 1 (2021): ELPOSYS vol.8 no.1 (2021); 22-27 2407-2338 2407-232X eng https://jurnal.polinema.ac.id/index.php/elposys/article/view/1163/863 Copyright (c) 2021 Elposys: Jurnal Sistem Kelistrikan https://creativecommons.org/licenses/by-nc/4.0

oai:ojs2.jurnal.polinema.ac.id:article/1219 2023-11-26T14:39:08Z elposys:ART

Analisis Audit Energi di Hotel Kota Malang Menggunakan Web-Based Monitoring System Ahmad Hermawan Rosina Ahda Dini Chandra Wiharya Energy audit, lighting cooling Dialux recommendations Energy audits are evaluation activities carried out to determine the condition of the energy used in a system. Audits are carried out to provide the efficiency of an electrical system. The first energy audit conducted was the initial energy audit. By using the specifications of the installed electrical system and using monitoring data. Followed by a detailed energy audit, to determine the condition of a more specific electrical system. The data used is measurement/monitoring data, and data calculations are then compared with the provision of the electricity standard. In calculating the intensity of energy consumption in the initial energy audit process, the IKE Fave Hotel results were still by the standards with an IKE value of 213.59 kWh/m2. Meanwhile, based on the results of a detailed energy audit, it was found that the lighting system and cooling system were not up to standard because the lux results for several rooms showed results that were less than the lux standard. Thus, it is necessary to provide recommendations for improvements to the lighting and cooling system. Providing lighting recommendations can use dialux as a calculation comparison. In the lighting system, it is necessary to replace some of the lamp specifications installed because they are far from standard values. This also needs to be done on the cooling system, by replacing the installed air conditioner according to existing calculations. This replacement was carried out to save energy for the continuity of the hospitality industry process at Fave Hotel Malang. Politeknik Negeri Malang 2023-06-14 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.polinema.ac.id/index.php/elposys/article/view/1219 10.33795/elposys.v10i2.1219 Elposys: Jurnal Sistem Kelistrikan; Vol. 10 No. 2 (2023): ELPOSYS vol. 10 no. 2 (2023); 95-100 2407-2338 2407-232X eng https://jurnal.polinema.ac.id/index.php/elposys/article/view/1219/2468 Copyright (c) 2023 Elposys: Jurnal Sistem Kelistrikan https://creativecommons.org/licenses/by-nc/4.0

oai:ojs2.jurnal.polinema.ac.id:article/1220 2023-11-26T14:39:08Z elposys:ART

Analisis Kualitas Daya dan Rekomendasi Perbaikan Sistem Kelistrikan di Gedung Perhotelan Ahmad Hermawan Jamik Apriliasari Chandra Wiharya Power Quality, Overvoltage, Undervoltage, Voltage Unbalance, Current Unbalance, Power Factor, Harmonics, ETAP. Fave Hotel is supplied by 2 PLN transformers, with capacities of 250 kVA and 100 kVA. The supply of electrical energy at Fave Hotel is very important because the possibility of disruption is very large in the process of distributing electrical energy. Load variations at Fave Hotel will also affect the electrical system. One of the disturbances that occur in the electric power system is power quality. The research method used is data observation, monitoring, analysis, and simulation using ETAP software. Based on the results of the analysis of various power quality parameters that were measured, the power quality conditions of the fave hotel were not good. A power quality problem has been identified at Fave Hotel, specifically a voltage imbalance occurs at MDP 2 on weekend is 2.64%. In addition, there is also a current imbalance occurs at MDP 1 and 2 during both weekends and weekdays, with the largest current imbalance occurs at MDP 2 on weekdays is 64.15%. To overcome the problem of voltage imbalance and current imbalance, it is recommended to perform load balancing on the system or install compensating equipment such as a voltage compensator. Politeknik Negeri Malang 2023-06-14 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.polinema.ac.id/index.php/elposys/article/view/1220 10.33795/elposys.v10i2.1220 Elposys: Jurnal Sistem Kelistrikan; Vol. 10 No. 2 (2023): ELPOSYS vol. 10 no. 2 (2023); 101-106 2407-2338 2407-232X eng https://jurnal.polinema.ac.id/index.php/elposys/article/view/1220/2469 Copyright (c) 2023 Elposys: Jurnal Sistem Kelistrikan https://creativecommons.org/licenses/by-nc/4.0

oai:ojs2.jurnal.polinema.ac.id:article/1384 2023-06-14T07:18:35Z elposys:ART

Studi Potensi Pengembangan Pembangkit Listrik Hybrid Genset-PV di Wilayah Pesisir Kabupaten Malang Divac Nabiel Akbar Gumilang, Binar Surya Zuroida, Afidah Renewable Energy, Photovoltaic, Hybrid Power Generation Economics Optimal Configuration The need for electrical energy in a region is increasing along with the growth of the population. Sources of electrical energy derived from fossils will run out over time because this energy is non-renewable. Thus, renewable sources of electrical energy must be developed and become a very urgent need for the community, including in the southern coastal area of ​​Malang Regency, East Java. The location has sufficient solar radiation potential and can be used to generate electrical energy. The development of renewable energy supports the self-sufficiency of the community in fulfilling electricity by utilizing the resources around them. This paper aims to examine the opportunities for developing hybrid power plants (electric generator sets and solar panels) in the southern coastal area of ​​Malang Regency using the HOMER software simulation. The results of the study concluded that generation using a hybrid system, with a COE value of IDR 6,972, an NPC value of IDR 615 (million) and a CO2 emission value of 5,992 kg per year is the recommended system configuration. The results of this study were then taken into consideration in designing a power generation system in the south coast region of Malang Regency. Politeknik Negeri Malang 2023-03-06 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.polinema.ac.id/index.php/elposys/article/view/1384 10.33795/elposys.v10i1.1384 Elposys: Jurnal Sistem Kelistrikan; Vol. 10 No. 1 (2023): ELPOSYS vol.10 no.1 (2023); 94-98 2407-2338 2407-232X eng https://jurnal.polinema.ac.id/index.php/elposys/article/view/1384/964 Copyright (c) 2023 Elposys: Jurnal Sistem Kelistrikan https://creativecommons.org/licenses/by-nc/4.0

oai:ojs2.jurnal.polinema.ac.id:article/1388 2023-05-17T07:19:08Z elposys:ART

Analisis Stabilitas Transien Tegangan dan Frekuensi pada Sistem Pembangkit Listrik Tenaga Uap Novfowan, Anang Dasa Mieftah, Mochammad Kusuma, Wijaya Stability Transient Voltage Frequency Pembangkit Tenaga Listrik Electrical energy generated also comes from several energy, namely water, steam, nuclear, etc. In Indonesia the type ofsteam power plant is a type of power plant that is widely used, where one of the crucial problems that are often encountered in this generation system, namely the problem of stability. The stability of the electric power system is the ability of the system to return to normal or steady operation after a large load load switching or interference. Disruption or load switching that exist in the system must be muted and aligned in a certain time to be said to be stable. Causes of instability are disruptions in the form of large capacity load switching, and the type of interference. One aspect that affects the stability itself is the transient stability. The transient stability is related to the sudden influx of large-capacity loads and affect the performance of the generator, therefore it is necessary to analyze the voltage and frequency transient stability for the evaluation of the capability of the electrical system so that the system maintains the continuity of the supply of electrical energy to the load normally. Based on the research results, the current flowing before the disturbance of 98.9 A and current disturbance of 145.2 kA. This causes the voltage response to decrease 50% of the nominal, and the frequency increases to 50.36 Hz. The time required from the disturbance condition to a stable condition within 5 seconds. Politeknik Negeri Malang 2023-05-17 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.polinema.ac.id/index.php/elposys/article/view/1388 10.33795/elposys.v8i1.31 Elposys: Jurnal Sistem Kelistrikan; Vol. 8 No. 1 (2021): ELPOSYS vol.8 no.1 (2021); 28-33 2407-2338 2407-232X eng https://jurnal.polinema.ac.id/index.php/elposys/article/view/1388/965 Copyright (c) 2021 Elposys: Jurnal Sistem Kelistrikan https://creativecommons.org/licenses/by-nc/4.0

oai:ojs2.jurnal.polinema.ac.id:article/1392 2023-05-17T07:18:51Z elposys:ART

Studi Perencanaan Penerangan Jalan Umum Panel Surya di Kelurahan Gading Kasri Kecamatan Klojen Santoso, Asfari Hariz Hermawan, Ahmad Panantuan, Muhammad Azzam Wian Public Street Lighting with Solar Powers, Annual cost system, Break event point , Malang City is a city that has an increasing need for electrical energy in the technological era, which today is very much needed in fulfilling daily life, both for household, social and industrial needs. One of them is the supply of electrical energy for Public Street Lighting (PJU). If you only rely on the supply of electrical energy from grid, this is a heavy burden that must be borne by the Malang City Regional Budget to pay the electric energy consumption bill for the PJU. This study aims to determine the comparison of the use of conventional PJU with solar powered PJU (PJUTS) in the area of Gading Kasri Village, Klojen District, Malang City both in terms of technical installations which include solar panels, batteries, and charger controllers as well as from an economic point of view. That shines for 5 hours every day, the solar panel power specifications are 240 Wp with 37 points of light. Budget calculations using the ACS (Annual cost system) which is obtained in the 16th year the difference from the initial investment costs and revenue from sales met at BEP (break event point) amounting to Rp. 256,761,376.00. Politeknik Negeri Malang 2023-05-17 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.polinema.ac.id/index.php/elposys/article/view/1392 10.33795/elposys.v8i1.29 Elposys: Jurnal Sistem Kelistrikan; Vol. 8 No. 1 (2021): ELPOSYS vol.8 no.1 (2021); 16-21 2407-2338 2407-232X eng https://jurnal.polinema.ac.id/index.php/elposys/article/view/1392/969 Copyright (c) 2021 Elposys: Jurnal Sistem Kelistrikan https://creativecommons.org/licenses/by-nc/4.0

oai:ojs2.jurnal.polinema.ac.id:article/1677 2024-02-12T05:21:29Z elposys:ART

oai:ojs2.jurnal.polinema.ac.id:article/2022 2023-05-17T07:18:01Z elposys:ART

Analisis Pengaruh Penambahan Suplai Daya 1000 MW Terhadap Performansi Jaringan Backbone 500 kV Mudjiono Imron Ridzki Priya Surya Harijanto GITET IBT Reverse Margin Sistem Transmisi  Based on the Decree of the Minister of Energy and Mineral Resources (ESDM) Number 0074.K / 21 / MEM / 2015 concerning the Ratification of the 2016-2025 Electricity Supply Business Plan (RUPTL), the load growth every year has increased. Therefore, there will be additional Generating Units with a capacity of 1000 MW at PLTU Paiton, it is necessary to analyze the effect of additional loads in 2017 - 2022 on the 500 KV GITET system before and after the addition of a 1000 MW generator. Based on the analysis, it is known that the additional power of 1000 MW will strengthen the Paiton GITET reserve margin in bearing the load growth, it can be seen from the reserve margin value before the addition of power plants by 16% and after the addition of 29%. For the ability of the Paiton - Grati GITET transmission line until 2022, the load is 62% with a power loss of 35.41 MW (2.85%) and the load on the Paiton - Kediri GITET transmission line is 62% with a power loss of 35.41 MW (2.85%) indicates that the channel still in good shape. In addition, the load condition for the IBT transformer until 2022 is 84%, it can be concluded that the transformer is in good condition Politeknik Negeri Malang 2023-05-17 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.polinema.ac.id/index.php/elposys/article/view/2022 10.33795/elposys.v8i1.39 Elposys: Jurnal Sistem Kelistrikan; Vol. 8 No. 1 (2021): ELPOSYS vol.8 no.1 (2021); 55-60 2407-2338 2407-232X eng https://jurnal.polinema.ac.id/index.php/elposys/article/view/2022/1544 Copyright (c) 2023 Elposys: Jurnal Sistem Kelistrikan https://creativecommons.org/licenses/by-nc/4.0

oai:ojs2.jurnal.polinema.ac.id:article/2025 2023-05-30T03:04:33Z elposys:ART

Analisis Drop Tegangan pada Instalasi Gedung Sipil Menggunakan Data DBMS (Database Management System) Sukamdi Sigit Setya Wiwaha Agista Ilham Aditama Sendy Mochtar Yessy Ema Wista Nainggolan MDP SDP Voltage Drop The results of the voltage drop calculation from the MDP panel to the SDP under maximum load conditions (100% loading) show that the largest voltage drop occurs on the Hyundai Lift Power Panel by 0.51%, due to the distance of the conductor to the PP Lift Hyundai being the farthest and the cross-sectional area and the magnitude of the load current being larger than other panels. From the analysis of the comparison of manual voltage drop calculation results against Ecodial simulation, there is an error of 9.8%, while against ETAP simulation there is an error of 5.88%. Based on the results of voltage drop calculations and analysis with manual calculations and Ecodial and Etap simulations in civil buildings, the percentage of voltage drop results is in accordance with PUIL 2011 Chapter 2.2.3 and IEC 60364-5-52 Table G.52.1 standards so there is no need to make voltage drop repairs because electrical conditions on each floor of civil buildings are still in normal condition. Politeknik Negeri Malang 2021-10-29 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion https://jurnal.polinema.ac.id/index.php/elposys/article/view/2025 10.33795/elposys.v8i3.72 Elposys: Jurnal Sistem Kelistrikan; Vol. 8 No. 3 (2021): ELPOSYS vol.8 no.3 (2021); 114-119 2407-2338 2407-232X Copyright (c) 2023 Elposys: Jurnal Sistem Kelistrikan https://creativecommons.org/licenses/by-nc/4.0

oai:ojs2.jurnal.polinema.ac.id:article/2026 2023-05-30T02:59:01Z elposys:ART

Desain Miniatur Pasteurisasi Susu Berbasis PLC sebagai Pengembangan Modul Pembelajaran di Laboratorium Sistem Kontrol Rahma Nur Amalia Ika Noer Syamsiana Ira Zulfa error steady state Milk Pasteurization overshoot PLC TWDLMDA20DTK rise time The pasteurization module that has been designed and made uses a PLC type TWDLMDA20DTK as its controller with the help of expansion in the form of TM2AMM6HT. The components contained in the module include a solenoid valve, heater, RTD, SRPH1, and a cooling system. The voltage from the source is then connected to the control box and then controlled by the TWDLMDA20DTK PLC and its expansion, namely TM2AMM6HT. All components will work according to the desired system operation, namely the temperature can be stable at 63˚ C for 30 minutes with PID auto-tuning control. This process is carried out by programming a ladder diagram on the TwidoSuite application. The stabilization of the module’s operation is regulated by the auto-tuning method, where this process will automatically produce Kp, Ti, and Td values ​​contained in the Ladder diagram. This process is carried out in order to obtain a stable system operation with the expected parameters. The expected parameters include a low steady-state error value of 5-10%. Politeknik Negeri Malang 2021-10-29 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.polinema.ac.id/index.php/elposys/article/view/2026 10.33795/elposys.v8i3.73 Elposys: Jurnal Sistem Kelistrikan; Vol. 8 No. 3 (2021): ELPOSYS vol.8 no.3 (2021); 120-125 2407-2338 2407-232X eng https://jurnal.polinema.ac.id/index.php/elposys/article/view/2026/1549 Copyright (c) 2023 Elposys: Jurnal Sistem Kelistrikan https://creativecommons.org/licenses/by-nc/4.0

oai:ojs2.jurnal.polinema.ac.id:article/2029 2023-05-30T02:59:55Z elposys:ART

Rancang Bangun Turbin Crossflow Pada Spiral Vortex Turbine House Sebagai Pembangkit Listrik Tenaga Pikohidro Sigit Setya Wiwaha Ferdian Ronilaya Farhan Dhiya Ulhaq M. Naufal Fariz Muhfid Ricky Setyawan Sri Wahyuni Dali Crossflow Turbine Intake PLTPH The Javan Langur Center is a Javan langur rehabilitation center located in the middle of the Coban Talun forest. In the area there is a river that can be used as a Pico Hydro Power Plant with a crossflow turbine as its main component. The selection of a crossflow turbine aims to analyze the latest design of a crossflow turbine, to determine the effect of the number of blades on the turbine rotation speed in the PLTPH system and to regulate discharge to obtain maximum output. The research began with making 2D designs and then continued in 3D and applied in real form. Data collection is carried out by creating a workflow for the entire process with an analysis method using a comparison of test data and field measurements. After data collection and analysis, the turbine at 100% intake opening produced a turbine speed of 52 rpm without pulleys and produced an output of 18 volts with a current of 0.31 A when connected to a battery. Politeknik Negeri Malang 2021-10-29 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.polinema.ac.id/index.php/elposys/article/view/2029 10.33795/elposys.v8i3.74 Elposys: Jurnal Sistem Kelistrikan; Vol. 8 No. 3 (2021): ELPOSYS vol.8 no.3 (2021) 2407-2338 2407-232X eng https://jurnal.polinema.ac.id/index.php/elposys/article/view/2029/1551 Copyright (c) 2023 Elposys: Jurnal Sistem Kelistrikan https://creativecommons.org/licenses/by-nc/4.0

oai:ojs2.jurnal.polinema.ac.id:article/2042 2023-05-30T03:00:46Z elposys:ART

Evaluasi Pentanahan Terhadap Sambaran Petir Pada SUTT 70 kV Menggunakan Electro Magnetic Transient Program (EMTP) Sigit Setya Wiwaha Rohmanita Duanaputri Sigi Syah Wibowo Adil Prasetyo Sri Wahyuni Dali Backflashover Grounding Touch Voltage Tower Voltage The transmission system is a system that often experiences lightning strikes and can cause back flashover (BFO) if there is a direct strike on the ground wire or on the tower. Lightning strikes can also cause touch voltage and step voltage hazards when lightning strikes the ground surface. Grounding is a safety device that functions to protect equipment, systems, humans and other living beings from electrical surges, especially lightning strikes. The grounding resistance value on the tower must be made as small as possible so as not to cause high tower voltage which can ultimately disrupt the transmission system. The grounding resistance limit according to PUIL 2000 is no more than or equal to 5 Ohms. This study aims to evaluate how feasible the tower and its protective devices are on the tower, including grounding and arresters in the event of a lightning strike. By collecting data, calculating tower voltage and simulating lightning overvoltage with the ATPdraw application. From testing the tower voltage by taking a sample on a tower with the highest grounding resistance of 5.8 Ohms on tower T63, the tower voltage value was obtained at 169.94 when given a current of 20 kA, 345.6 kV when given a current of 40 kA, and 682.03 kV when given a current of 80 kA. By calculation and simulation that the tower voltage value does not cause Back flashover (BFO) so it can be categorized as safe and feasible from lightning strike interference. Politeknik Negeri Malang 2021-10-29 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.polinema.ac.id/index.php/elposys/article/view/2042 10.33795/elposys.v8i3.75 Elposys: Jurnal Sistem Kelistrikan; Vol. 8 No. 3 (2021): ELPOSYS vol.8 no.3 (2021); 132-137 2407-2338 2407-232X eng https://jurnal.polinema.ac.id/index.php/elposys/article/view/2042/1555 Copyright (c) 2023 Elposys: Jurnal Sistem Kelistrikan https://creativecommons.org/licenses/by-nc/4.0

oai:ojs2.jurnal.polinema.ac.id:article/2044 2023-05-30T03:01:22Z elposys:ART

Analisis Keseimbangan Beban dan Harmonisa Di Gedung Graha Polinema Ahmad Hermawan Mudjiono Chandra Wiharya Siffa Seftiana harmonics load imbalance losses A large load imbalance is caused by the use of single-phase loads in a three-phase system, and poor harmonics are caused by non-sinusoidal loads, which result in losses in the network and poor quality of power distribution. This study aims to monitor and analyze load balance and harmonics in the Graha Polinema Building at Politeknik Negeri Malang. The research is a survey and case study using primary data obtained through direct measurement using a Web-Based Power Quality Meter (PM 5110) to gather data from each SDP panel, and secondary data through observation. From this study, the highest current imbalance value of 133.50% was found in the North 4th Floor SDP Panel of the Grapol Building, exceeding the IEEE 1159-2009 standard, which sets the limit for load imbalance at 30%. Current Harmonic Distortion (IHD) occurred in 8 SDP panels, except for the North and South Water Pump Panels. Total Demand Distortion (TDD) for all panels was within the standard limits. Total Harmonic Distortion (THDv) for all panels was also within the standard limits, with the highest value of 2.37% found in the North 4th Floor Panel. Politeknik Negeri Malang 2021-10-29 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.polinema.ac.id/index.php/elposys/article/view/2044 10.33795/elposys.v8i3.76 Elposys: Jurnal Sistem Kelistrikan; Vol. 8 No. 3 (2021): ELPOSYS vol.8 no.3 (2021); 138-143 2407-2338 2407-232X eng https://jurnal.polinema.ac.id/index.php/elposys/article/view/2044/1556 Copyright (c) 2023 Elposys: Jurnal Sistem Kelistrikan https://creativecommons.org/licenses/by-nc/4.0

oai:ojs2.jurnal.polinema.ac.id:article/2045 2023-05-30T03:01:58Z elposys:ART

Analisis Pengaruh Pengaturan Sudut Penyalaan Thyristor Pada Tegangan Eksitasi Terhadap Keluaran Daya Reaktif Generator di PT.PJB PLTU Gresik Unit 3 Rachmat Sutjipto Ika Noer Syamsiana Widya Pratiwi Suryaningsih Excitation system Reactive Power Simulink Matlab Synchronous Generator In this study, the excitation system used is a static excitation system that uses a transformer and several thyristors connected in a bridge configuration. The excitation system is then implemented on a generator with a capacity of 200 MVA / 15 kV using the MATLAB Simulink R2017b simulation. By using the above circuit, the thyristor ignition angle setting can be adjusted so that it can adjust the excitation voltage and obtain the appropriate excitation current to maintain the stability of the generator output voltage. The simulation was carried out with variations in generator load and using 2 different types of excitation settings. The first setting is to set the thyristor ignition angle to 30° with t=10 ms, at this setting the generator can maintain a stable V out value with a voltage regulation limit of ±5% and the reactive power that can be generated by the generator is +50MVAr and - 40 MVAr. When given a constant excitation at an angle of 35° with t=1 ms, the value of Vout exceeds the expected regulatory limit and the resulting reactive power limit is between +60 MVAr and -100 MVAR where the reactive power does not match the load requirements. This can have an impact on the interconnection system, namely when the reactive power of the generator is greater than the load requirement, the generator with a smaller reactive power will absorb reactive power in the interconnection system and can disrupt the stability of the interconnection network. Politeknik Negeri Malang 2021-10-29 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.polinema.ac.id/index.php/elposys/article/view/2045 10.33795/elposys.v8i3.77 Elposys: Jurnal Sistem Kelistrikan; Vol. 8 No. 3 (2021): ELPOSYS vol.8 no.3 (2021); 144-149 2407-2338 2407-232X eng https://jurnal.polinema.ac.id/index.php/elposys/article/view/2045/1558 Copyright (c) 2023 Elposys: Jurnal Sistem Kelistrikan https://creativecommons.org/licenses/by-nc/4.0

oai:ojs2.jurnal.polinema.ac.id:article/2046 2023-05-30T03:02:44Z elposys:ART

Analisis Perencanaan Capacitor Bank Untuk Perbaikan Faktor Daya Pada Pusat Perbelanjaan Blitar Square Sulistyowati Muhammad Fahmi Hakim Ikfi Asmaul Khusna Heri Sungkowo Capacitor Bank Effectivity Power Factor From the research that has been done at the Blitar Square Shopping Center, it was found that the power factor value is still below the standard with an average value of 0.711. Therefore, it is necessary to improve the power factor by installing a capacitor bank. The calculation results show that global compensation requires 12 capacitor banks with a rating of 10.4 kVAR, while sectoral compensation on the chiller load panel requires 7 capacitor banks with a rating of 10.4 kVAR and the foodmart load panel requires a capacitor bank with a rating of 10. 4 kVAR is 6 pieces. In addition, the installation of a capacitor bank also results in an increase in the voltage value in the system, this voltage increase is still below the permissible standard of ± 5%. The simulation of installing a capacitor bank on global compensation can improve the power factor value from 72.99% to 96.97%, with a voltage increase of 0.479% from the initial value of 397 V to 398.9 V, and a decrease in the current value of 24.645% from the initial value. 330.7 A to 249.2 A. While the simulation of installing a capacitor bank in sectoral compensation can improve the power factor value from 72.99% to 93.57%, with a voltage increase of 0.401% from the initial value of 397 V to 398.6 V , and a decrease in the value of current by 21.593% from the initial value of 330.7 A to 258.1 A. Politeknik Negeri Malang 2021-10-29 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.polinema.ac.id/index.php/elposys/article/view/2046 10.33795/elposys.v8i3.80 Elposys: Jurnal Sistem Kelistrikan; Vol. 8 No. 3 (2021): ELPOSYS vol.8 no.3 (2021); 150-155 2407-2338 2407-232X eng https://jurnal.polinema.ac.id/index.php/elposys/article/view/2046/1559 Copyright (c) 2023 Elposys: Jurnal Sistem Kelistrikan https://creativecommons.org/licenses/by-nc/4.0

oai:ojs2.jurnal.polinema.ac.id:article/2047 2023-05-30T03:03:12Z elposys:ART

Aplikasi Particle Swarm Optimization Pada Pemasangan Kapasitor Bank Pada Jaringan Distribusi Mudjiono Priya Surya Harijanto Imron Ridzki capacitor bank heuristic optimization The length of conductor paths in distribution networks often leads to voltage drop issues and significant network losses. Placing capacitor banks in the distribution network is the primary solution to address these problems. However, optimizing the installation to achieve a significant impact on the voltage level in the network requires complex calculations, especially for very long lines such as in the 20 kV medium voltage network. This paper will use a 20 kV primary distribution system with 10 buses and 9 lines. Based on operational conditions, there are several issues that need to be addressed, and their solutions will be sought through heuristic methods. Politeknik Negeri Malang 2021-10-29 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.polinema.ac.id/index.php/elposys/article/view/2047 10.33795/elposys.v8i3.81 Elposys: Jurnal Sistem Kelistrikan; Vol. 8 No. 3 (2021): ELPOSYS vol.8 no.3 (2021); 156-162 2407-2338 2407-232X eng https://jurnal.polinema.ac.id/index.php/elposys/article/view/2047/1560 Copyright (c) 2023 Elposys: Jurnal Sistem Kelistrikan https://creativecommons.org/licenses/by-nc/4.0

oai:ojs2.jurnal.polinema.ac.id:article/2048 2023-05-30T03:04:03Z elposys:ART

Analisis Penggunaan Variable Speed Drive (VSD) pada Motor Kompresor Tresna Umar Syamsuri Harrij Mukti K. Rohmanita Duanaputri Compressor Motor Variable Speed Drive (VSD) A Variable Speed Drive (VSD) is a device that regulates the speed and rotational force or torque of mechanical equipment. VSD improves efficiency by allowing the motor to operate at the ideal speed for each load condition. In many applications, VSD reduces the electricity consumption of the motor by 30-60%. The energy-saving potential of electric motors is significant as motor systems account for more than 60% of the power consumed by industries. It is due to these advantages that VSD can be used to control the speed of compressor motors, thereby enhancing the performance of the compressor. A compressor motor is a device that compresses air and increases its pressure. To compress air, the compressor requires a driving force, and one of them is the motor. When the output air pressure of the compressor exceeds a certain value, the relief valve will open automatically, allowing the air to remain in the tank even when the motor is still running. During compressor operation, the motor is always started with a high starting current, resulting in high power demand. Therefore, control of the compressor motor is necessary. Politeknik Negeri Malang 2021-10-29 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.polinema.ac.id/index.php/elposys/article/view/2048 10.33795/elposys.v8i3.82 Elposys: Jurnal Sistem Kelistrikan; Vol. 8 No. 3 (2021): ELPOSYS vol.8 no.3 (2021); 163-166 2407-2338 2407-232X eng https://jurnal.polinema.ac.id/index.php/elposys/article/view/2048/1561 Copyright (c) 2023 Elposys: Jurnal Sistem Kelistrikan https://creativecommons.org/licenses/by-nc/4.0

oai:ojs2.jurnal.polinema.ac.id:article/2049 2023-05-30T03:05:32Z elposys:ART

Analisis Perencanaan Pemasangan Recloser pada Penyulang untuk Meminamilisr Pemadaman Wijaya Kusuma Ahmad Hermawan Aulia Nur Rahma Muhammad Ilham Rifqi Feeder Recloser Safety One of the feeders in PT. PLN (Persero) ULP is the Selecta Feeder. Based on data, the Selecta Feeder experienced 34 disturbances from January 2018 to November 2020, with a feeder load of 164 A, 106 distribution transformers (GTT), and a network length of 62.602 km. The Selecta Feeder is the feeder with the highest load in PT. PLN (Persero) ULP Batu, and the high number of disturbances on the Selecta Feeder will have a significant impact on the revenue of PT. PLN (Persero). There are 7 load break switches (LBS) and 1 recloser installed on the Selecta Feeder. During the period of January 2018 to November 2020, most of the disturbances occurred due to external factors and happened in sections 3 and 4. Therefore, it is necessary to ensure the continuity of electrical energy supply on the Selecta Feeder to anticipate widespread power outages by adding an installed recloser. A recloser is a protective device that can detect excessive current due to short circuits between phases or phase-to-ground faults, where the recloser automatically interrupts and recloses the circuit with an adjustable time delay. Politeknik Negeri Malang 2021-10-29 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.polinema.ac.id/index.php/elposys/article/view/2049 10.33795/elposys.v8i3.83 Elposys: Jurnal Sistem Kelistrikan; Vol. 8 No. 3 (2021): ELPOSYS vol.8 no.3 (2021); 163-171 2407-2338 2407-232X eng https://jurnal.polinema.ac.id/index.php/elposys/article/view/2049/1562 Copyright (c) 2023 Elposys: Jurnal Sistem Kelistrikan https://creativecommons.org/licenses/by-nc/4.0

oai:ojs2.jurnal.polinema.ac.id:article/2050 2023-05-30T02:46:35Z elposys:ART

Perencanaan Instalasi Penangkal Petir Pada Bangunan Industri Bengkel Pembuatan Mesin CV. Karya Brawijaya Rohmanita Duanaputri Ruwah Joto Sigi Syah Wibowo Fery Nova Dwi Prasetyo Conventional (Franklin) Electrostatic (E.F. Lightning) External Lightning Protection In this era, Indonesia's industry is rapidly developing and relies heavily on electrical components, especially in the Agro-Industry Machine Workshop of CV. Karya Brawijaya. CV. Karya Brawijaya is an industry that produces agro-industrial machinery. In the planning of external protection systems, the commonly used methods are conventional lightning rods and electrostatic methods. Therefore, to further examine the situation, observations conducted in the industry revealed the absence of a lightning protection system. Hence, the author aims to plan and compare the two types of lightning protection systems, namely conventional (Franklin) and electrostatic (E.F. Lightning Protection System), in terms of protection, technical aspects, economy, advantages, and disadvantages. The research and observations were conducted in the CV. Karya Brawijaya building area, using data collection techniques such as direct observation, interviews, and literature studies. This process yielded building layout data (height, width, and length) and data on thunderstorm days in 2019 (IKL 243). These data were then used to calculate the parameters for lightning protection system installation planning according to the standards set by SNI 07015-2004 and PUIPP. The results of the conventional method (Franklin) planning, with air terminations using rolling spheres, showed that 9 finials were installed, allowing the building to withstand currents up to 160.06 kA. On the other hand, the electrostatic method (E.F. Lightning Protection System) planning resulted in the installation of 1 finial, enabling the building to withstand currents up to 23.737 kA. If the current exceeds these values, the lightning protection system will capture the lightning strike. Politeknik Negeri Malang 2021-10-29 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.polinema.ac.id/index.php/elposys/article/view/2050 10.33795/elposys.v8i3.53 Elposys: Jurnal Sistem Kelistrikan; Vol. 8 No. 3 (2021): ELPOSYS vol.8 no.3 (2021); 92-97 2407-2338 2407-232X eng https://jurnal.polinema.ac.id/index.php/elposys/article/view/2050/1563 Copyright (c) 2021 Elposys: Jurnal Sistem Kelistrikan https://creativecommons.org/licenses/by-nc/4.0

oai:ojs2.jurnal.polinema.ac.id:article/2521 2023-11-26T14:39:08Z elposys:ART

Analisis Koordinasi Relai Proteksi Transformator I 150/20kV GI Bumicokro Akibat Uprating Daya 50MVA Menjadi 60MVA Anang Dasa Novfowan Mochammad Mieftah Heri Sungkowo Relay Coordinations Overcurrent and Ground Fault Relay Settings SBEF Settings Differential Settings REF Settings Transformer Protection Nowadays, Electricity is a important thing for people. As the load grown at the Bumicokro Substation, transformer I had replaced from 50 MVA to 60MVA. Because of that, the relays protection had to be resetting because of the changes of nominal current. Therefore, the objectives of this research are calculated and simulated the setting of OCR (Over Current Relay), GFR (Ground Fault Relay), SBEF (Stand by Earth Fault), differential and REF (Resistance Earth Fault) relay. ETAPv12.6 software is used to get the relay coordination Outgoing 22kV, Incoming 150kV, OCR (Over Current Relay), GFR (Ground Fault Relay), SBEF (Stand by Earth Fault), differential and REF (Resistance Earth Fault) after the calculation and simulation finished, then the result indicated the appropriate conditions to overcome the distrubance at the transformer according to the protection zone. The result of current setting for Differential relay is 2,88A, Primary REF is 0,5A, Secondary REF is 1,1A, 150kV OCR is 3,5A, and the moment setting is 28A, 22kV OCR 150kV 4,7A, GFR 1,44A, SBEF 1,0A. While, the result of time setting for Differential relay, Primary REF, Secondary REF are instant, for 150kV OCR is 1,06s, 22kV OCR is 1,07s, GFR 1,51s, and SBEF 8,8s. Politeknik Negeri Malang 2023-06-14 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.polinema.ac.id/index.php/elposys/article/view/2521 10.33795/elposys.v10i2.2521 Elposys: Jurnal Sistem Kelistrikan; Vol. 10 No. 2 (2023): ELPOSYS vol. 10 no. 2 (2023); 112-117 2407-2338 2407-232X eng https://jurnal.polinema.ac.id/index.php/elposys/article/view/2521/2490 Copyright (c) 2023 Elposys: Jurnal Sistem Kelistrikan https://creativecommons.org/licenses/by-nc/4.0

oai:ojs2.jurnal.polinema.ac.id:article/2522 2023-11-26T14:39:08Z elposys:ART

Audit Energi dan Rekomendasi Penghematan Energi Listrik di Gedung Rumah Sakit Muhammad Fahmi Hakim Ahmad Hermawan Fandi Kurniawan Kumala Mahda Habsari Energy Audit Energy Use Intensity (EUI) Lighting Systems Air Conditioning Total Harmonic Distortion (THD) The actions for electricity consumption more efficiently is reducing the amount of electricity consumption of renewable and non renewable energy for human living sustainability or we can called energy conservation. Energy audit purposed to the energy utilization evaluation progress, is still infrequently applied in Indonesia, especially in huge building. The analyzing result of A building in the Dr. Radjiman Wediodiningrat Asylum, the first value audit of Energy Use Intensity (EUI) is 21,944 kwh/m2/year it was include the criteria of efficient. This EUI value is below EUI research that was issued by ASEAN-USAID in 1992 and the EUI value average of hospital in Korea, while detailed audit obtained energy value of EUI is 23,213 kWh/m2/year is included to the criteria of efficient. The THDi value in electricity system is IR= 33,2%, IS=24,48%, IT= 34,85% and IN=122,96%, the THDi value is not complied with IEEE 519-2014 permission which is the value is ISC/IL> 1000 has restraint value by 20%. Whereas the THDv value in electricity system is VR-S= 2,04%, VS-T= 2,11%, VT-R= 1,97%, VR-N= 3,83%, VS-N= 3,69%, VT-N= 3,73% and VL-L= 2,04% and VL-N= 3,75%, the value of THDv is complied the permissiod by IEEE 519-2014 with Voltage system of identification by 0,4 kV, therefore the limit value of THDV which permitted is 8%. Politeknik Negeri Malang 2023-06-14 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://jurnal.polinema.ac.id/index.php/elposys/article/view/2522 10.33795/elposys.v10i2.2522 Elposys: Jurnal Sistem Kelistrikan; Vol. 10 No. 2 (2023): ELPOSYS vol. 10 no. 2 (2023); 136-141 2407-2338 2407-232X eng https://jurnal.polinema.ac.id/index.php/elposys/article/view/2522/2631 Copyright (c) 2023 Elposys: Jurnal Sistem Kelistrikan https://creativecommons.org/licenses/by-nc/4.0 b33ec80228d89a8bc92e3fcd4b8c4666