高压电网的合闸于故障保护

Switch onto Fault Protection for High Voltage Power Network

对合闸于故障保护的配置、构成作了综合论述 ,并对电网各种接线形式下合闸于故障保护的合闸判据及测量元件作了对比 ,分析了各种合闸判据、测量元件的利弊。从而得出 :根据不同的接线形式 ,合理地配置合闸判据及测量元件 ,以强化合闸判据提高保护的安全性 ,简化测量元件 ,提高保护的速度和灵敏度。

The configuration and construction of protection for SOTF are discussed together,and the closing crirerion and metering component of SOFT protection applied in different electric connection of power networks are compared.Their advantages and disadvantages are also analyzed.To rationally configure the closing criterion and metering component according to different connections will enhance the protection security as well as speed and sensitivity.