摘要
针对锦屏一级水电站内500 kV GIL曾发生的一起短路接地故障,利用线路保护、故障录波和稳控装置所测得的故障电流,结合500 kV保护配置图来综合判断故障范围,从而为线路开关是否具备合环运行和线路是否具备试送条件提供了依据。
A short circuit grounding fault is observed in the 500 kV GIL in Jinping I Hydropower Station. Based on the fault current values measured by the line protection device, the fault recorder and the stability control device, and the protection configuration diagram, possible location of the fault is determined. It could be useful reference to judge whether the circuit switches are of closed-loop operation conditions and whether the circuit is of commissioning qualification.
引文
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