摘要
某合资厂500kV断路器断口并联电容器在现场10kV电压下介损超标,通过分析断口并联电容器的特性,并将其拆下来送到试验室进行高电压介损试验。试验结果表明由于Garton效应的影响,在10kV电压下测得的介损值远高于实际电压下的介损值。高电压介损试验可以消除Garton效应的影响,能更真实的反映断口并联电容器在运行状况下的介损情况。
Shunt capacitors between breaks of 500kV circuit breaker in a joint venture in the field under 10kV voltage dielectric loss exceeded,through the analysis of characteristics of capacitors,and it is broken down and sent to the laboratory for high voltage dielectric loss test.Test results showed that since the impact of Garton effect, 10kV voltage measurement of the dielectric loss is much higher than the actual voltage dielectric loss.Hign voltage dielectric loss test can eliminate the Garton effect, more ture reflection of Shunt capacitors dielectric loss in running situnations.
出处
《河南电力》
2013年第1期14-15,36,共3页
Henan Electric Power