关于220kV春申站欠补偿问题解决方案的建议

Suggestions on Solving Sub-compensation Status of 220kV Chunshen Substation

通过比较220 kV春申站及其相关各受控站35 kV系统中性点接地方式,发现站内35 kV系统3只消弧线圈均处于欠补偿状态。在对欠补偿的危害进行具体分析的同时,提出2种解决方案,即增加消弧线圈的容量及改为采用经小电阻接地方式,通过对比分析提出了对春申站进行小电阻接地系统改造的建议,并分析了实施的可行性。

By comparing neutral grounding mode in 35 kV system of 220 kV Chunshen substation and its govered substations,the problem that three arc-suppression coils in 35 kV system of Chunshen Substation staying sub-compensation status is presented.Based on detailed analysis of sub-compensation,reasonable solutions are proposed,including increasing capacity of arc-suppression coil and adopting low resistance grounding.Then the paper makes suggestions on constructing low resistance grounding for Chunshen Substation,as well as feasibility of the implementation is analyzed.