摘要
结合电网的实际运行情况,对110 kV不接地变压器间隙保护进行了分析,提出了110 kV变压器中性点的保护配置方案,并分析了采用间隙和避雷器并联保护时,避雷器对中性点工频暂态过电压的限制作用。
Combined with the actual operation of the power grid, analyzed the gap protection of 110 kV ungrounded transformers, proposed protection configuration scheme of 110 kV transformer neutral point, and analyzed the restriction of the arrester to frequency transient over voltage by using parallel protection of gap and arrester.
出处
《能源与节能》
2013年第1期15-16,24,共3页
Energy and Energy Conservation
关键词
运行方式
零序过压
变压器间隙保护
放电特性
operation method
zero sequence overvoltage
transformer gap protection
discharge property
