A Dissolved Gas Analysis Investigation of Natural Ester under Electrical Breakdown Faults

被引：1

作者：

Zhang, C. ^{[1
]}

Liao, J. P. ^{[2
]}

Zhong, L. S. ^{[1
]}

Li, H. Q. ^{[1
]}

Chug, J. W. ^{[2
]}

Yu, S. M. ^{[1
]}

Zheng, Y. Y. ^{[1
]}

Liu, X. W. ^{[1
]}

机构：

[1] Xi An Jiao Tong Univ, State Key Lab Elect Insulat & Power Equipment, 28 Xianning Rd, Xian 710049, Shaanxi, Peoples R China

[2] China Southern Power Grid Co Ltd, Maintenance & Test Ctr, EHV Transmiss Co, 181 Sci Ave, Guangzhou 510405, Guangdong, Peoples R China

来源：

2020 IEEE CONFERENCE ON ELECTRICAL INSULATION AND DIELECTRIC PHENOMENA (2020 IEEE CEIDP) | 2020年

关键词：

Electrical Breakdown Fault; Natural Ester; Mineral Oil; DGA; Oil-Pressboard Interface;

D O I：

10.1109/CEIDP49254.2020.9437454

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Natural ester has been successfully put into commercial use in high voltage transformer in recent years for its advantages in fire resistance, biodegradation, etc. This paper presents experimental results of dissolved gas analysis(DGA) of natural ester under AC breakdown faults with and without oil-pressboard interface, and mineral oil were tested as comparison. The results revealed that more CO generated in natural ester than mineral oil after breakdown, and the proportion of fault gases changed when oil-pressboard interface involved. It was also found that significant amount of bubbles formed at pre-breakdown stage in case of creeping discharge on pressboard surface.

引用

页码：196 / 199

页数：4

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