Diagnostic techniques and apparatus for detecting faults in perfluorocarbon liquid immersed transformers

被引：5
|
作者：
Mizuno, K [1 ]
Ogawa, A [1 ]
Ooe, E [1 ]
Mori, E [1 ]
机构：
[1] HITACHI LTD,HITACHI,IBARAKI,JAPAN
来源：
IEEE TRANSACTIONS ON POWER DELIVERY | 1996年 / 11卷 / 02期
关键词：
non-flammable; perfluorocarbon; transformer; diagnostic techniques; apparatus; gas detection;
D O I：
10.1109/61.489351
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：
This paper deals with techniques and an apparatus designed to diagnosis transformer faults by detecting C2F4, C2F6 and C3F6 gases contained in perfluorocarbon (PFC) liquid. The authors first established fault diagnostic techniques that employ gas patterns, gas composition ratios and fault diagnostic diagram and flow chart, based on the C2F4, C2F6 and C3F6 gases generated by overheating, partial discharges and are discharges. Then, the authors verified the possibility of diagnosing internal faults in PFC liquid-immersed transformers when internal fault simulation tests on transformer model are conducted. The C2F4 and C3F6 gases generated there are detected with the gas diagnostic apparatus equipped with a gas sensor.
引用
收藏
页码：909 / 916
页数：8
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