Evaluasi Kinerja Sistem Isolasi Transformator Kertas Kraft Terendam Minyak Mineral Pada Sel Uji Penuaan Termal Dipercepat
DOI:
https://doi.org/10.33795/elposys.v9i3.640Keywords:
Transformer, Accelerated Ageing Chamber, Insulation System, Thermal StressAbstract
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. The
results of the sample will later be tested for the characteristics of the transformer insulation, namely tensile strength, color scale, and
breakdown voltage due to thermal stress.
References
CIGRE 227, “Life management Techniques for Power
Transformer,” 2003.
R. A. Prasojo, K. Diwyacitta, Suwarno, dan H. Gumilang,
“Transformer paper expected life estimation using ANFIS
based on oil characteristics and dissolved gases (Case
study: Indonesian transformers),” Energies, vol. 10, no. 8,
F. Tang, Y. Zhang, B. Yuan, Y. Li, W.-B. Zhang, dan G.-J.
Zhang, “Ageing condition assessment of oil-paper
insulation using near infrared spectroscopy detection and
analytical technique,” J. Eng., vol. 2019, no. 16, hal. 3026–
, 2019.
C. Fernandez-Diego, A. Ortiz, I. Fernandez, I. Carrascal, C.
J. Renedo, dan F. Delgado, “Assessment of the effect of
commercial vegetal oils on Kraft paper ageing through
mechanical characterization,” IEEE Trans. Dielectr. Electr.
Insul., vol. 25, no. 5, hal. 1880–1887, 2018.
M. Kohtoh, G. Ueta, S. Okabe, dan T. Amimoto,
“Transformer insulating oil characteristic changes observed
using accelerated degradation in consideration of field
transformer conditions,” IEEE Trans. Dielectr. Electr. Insul.,
vol. 17, no. 3, hal. 808–818, 2010.
Z. Poniran dan Z. A. Malek, “Life assessment of power
transformers via paper ageing analysis,” POWERENG
- Int. Conf. Power Eng. - Energy Electr. Drives Proc.,
hal. 460–465, 2007.
A. K. Mehta, R. N. Sharma, S. Chauhan, dan S. Saho,
“Transformer diagnostics under dissolved gas analysis
using Support Vector Machine,” Proc. 2013 Int. Conf.
Power, Energy Control. ICPEC 2013, hal. 181–186, 2013.
R. A. Prasojo, A. Setiawan, Suwarno, N. U. Maulidevi, dan
B. A. Soedjarno, “Development of Analytic Hierarchy
Process Technique in Determining Weighting Factor for
Power Transformer Health Index,” in The 2nd International
Conference on High Voltage and Power Systems
ICHVEPS, 2019.
R. A. Prasojo, Suwarno, N. U. Maulidevi, dan B. A.
Soedjarno, “A Multiple Expert Consensus Model for
Transformer Assessment Index Weighting Factor
Determination,” in 8th International Conference on
Condition Monitoring and Diagnosis (CMD), 2020, hal.
–237.
C57.100-2011, IEEE Standard Test Procedure for Thermal
Evaluation of Liquid-Immersed Distribution and Power
Transformers, no. January. 2011.
Downloads
Published
How to Cite
Issue
Section
License
Copyright (c) 2022 Elposys: Jurnal Sistem Kelistrikan
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
