我国500千伏电网继电保护运行概况

General Aspects of Operation of Relay Protection for 500kV Power System in China

本文概述了我国500kV电网事故情况和继电保护运行情况,包括各类保护在电网正常状态和事故状态下所发生的不正确动作情况和原因,以及取得的若干经验教训。

This paper reviews the fault status and relay protection operation in 500kV power system in China, including the malopera-tion and causes of various protections during normal or fault condition of system as well as the experience and lessons gained from their operation.