Pengaruh Kadar Air terhadap Karakteristik Tegangan Tembus dan Dielektrik Isolasi Kertas-Minyak

  • Andhang Windarto Universitas Gadjah Mada
  • Suharyanto Universitas Gadjah Mada
  • T. Haryono Universitas Gadjah Mada
Keywords: isolasi kertas-minyak, kadar air, pengujian tegangan tinggi, pemanasan, pendinginan, tegangan tembus, kekuatan dielektrik

Abstract

Paper impregnated oil (paper-oil insulation) is used as insulation material in transformer. The water in transformer appears as a consequence of oxidation process of the paper-oil system and atmospheric air penetration into the tank. High voltage testing is used to test paper-oil insulation with different water content to examine its breakdown voltage. Three conditions were used in this research, which are initial condition, the condition after heating up to 700C, and the condition after cooling down at room temperature for 2 x 24 hour. The result of high voltage tests shows that the water content can decrease the breakdown voltage and the dielectric strength of paper-oil insulation. The heating-cooling process reduces the water content of oil insulation and therefore increases the breakdown voltage and dielectric strength of paper-oil insulation.

References

Dong,M.,Zhou,M.G.,Qu,Y.M., dan Yan,Z, Synthetic Furfural Analysis for Paper Insulation Ageing Diagnosis of Transformer, Proceedings of 2005 International Symposium on Electrical lnsulating Materials,Japan,2005.

Przybyblek P., Moscicka H., The Influence of Water Content and Ageing Degree of Paper Insulation on its Mechanical Strength, International Conference on Solid Dielectrics, Potsdam, Germany,2010.

Yang,L., Liao, R., Jian Li, Wang,Y., dan Liang,S., Recognizing Different Aging Stages of Oil-Paper Based on Fisher Discriminant, Proceedings of 2005 lnternational Symposium on Electrical Insulating Materials,Japan,2005.

Kato, K. L., dan Cameron, R. E., A Review of The Relationship Between Thermally-Accelerated Ageing of Paper and Hornification. Cellulose 6:23-40,1999.

Joshi,A. dan Kumar,S., Variation of Dielectric Strength of A Insulation Paper With Thermal Aging,NDT&E International 38: 459–461,2005.

Joshi,A. dan Bhanot,V., Effect of Accelerated Aging on The Tensile Index of A Synthetic Insulation Paper,NDT&E International 38: 394–396,2005.

ASTM D 95, Standard Test Method for Water in Petroleum Products and Bituminous Materials by Distillation. ASTM International,2002.

CEI/IEC 156, Insulating Liquids - Determination of The Breakdown Voltage at Power Frequency – Test Method, 1995.

Published
2015-12-28
How to Cite
Andhang Windarto, Suharyanto, & T. Haryono. (2015). Pengaruh Kadar Air terhadap Karakteristik Tegangan Tembus dan Dielektrik Isolasi Kertas-Minyak. Jurnal Nasional Teknik Elektro Dan Teknologi Informasi, 4(2), 130-133. Retrieved from https://dev.journal.ugm.ac.id/v3/JNTETI/article/view/3014
Section
Articles