高压并联电抗器铁芯夹件多点接地分析及处理

Multipoint grounding of iron core clamp of high voltage shunt reactor analysis and treatment

鉴于高压并联电抗器在远距离输电线路中的重要性,通过参照变压器铁芯夹件多点接地故障的处理经验,分析了故障产生的原因和处理方法,并介绍了一起500kV高压并联电抗器铁芯夹件多点接地故障处理过程。在故障初期采用在铁芯夹件接地回路串接限流电阻的措施是合理有效的,为现场处理高压并联电抗器铁芯夹件多点接地故障提供了参考。

In view of the importance of high-voltage shunt reactor in long-distance transmission line,this paper analyzes the causes and treatment methods of the fault by referring to the treatment experience of multi-point grounding fault of transformer core clamp,and introduces the treatment process of a multi-point grounding fault of 500kV high-voltage shunt reactor core clamp.At the initial stage of fault,the measure of connecting current limiting resistance in series in the grounding circuit of iron core clamp is reasonable and effective,which provides a reference for dealing with multi-point grounding fault of iron core clamp of high voltage shunt reactor on site.