倒送电运行方式中备自投动作分析及技术措施

Analysis and technical measures of reserved auto-switch-on device action in inverse power transmission operation

近年来电网规模不断扩大,电力用户对电能质量的要求越来越高,电力系统的供电可靠性显得尤为重要。为了保障变电站安全稳定运行、系统供电持续可靠,备自投装置已广泛应用于110kV及以下电压等级的网络。针对泮洋变10kVPSP641备自投在系统倒送电运行方式中的动作情况,采用原理分析、逻辑对比的方法进行分析和探讨,指出在运行和调试中需要防范的技术措施,对于备自投的设计、运行及保障系统安全、稳定运行具有重要意义。

With the extension of power system, the demand of power source users is greater, and power distribution reliability becomes more important. Reserved auto-switch-on devices have been used in substation widely,its reliability influences the system＇s safety and stability. In allusion to the reserved auto-switch-on device action of Panyang substation in inverse power transmission operation, technical measures of reserved auto-switch-on device action are proposed in this paper with theoretical analysis and logic comparability, which has important role to design reserved auto-switch-on device and protect the power system＇s safety and stability.