摘要
本文通过对油浸纸板沿面爬电性能研究、220kV变压器相间电场计算、运行变压器积污物的化学定性分析、导线、长垫块、和围屏组合件的模拟试验以及对闵行电厂8号主变的详细解体分析,揭示了围屏放电的原因及发展机理,提出预防该类事故的措施。
The cause of treeing discharge and its expanding machanismon the oil immersed pressboard barrier in HV transformer were studiedin this paper. The calculation of electric field strength between phasewindings in 220kV transformer, chemical qualitative analysis of deposi-tion in the transformer, simulation test on wire, long spacer insulationand barrier assembly, detailed analysis on a disassembled 220kV trans-former were carried out.
出处
《华东电力》
1990年第12期1-6,共6页
East China Electric Power
