继电保护基础管理的几点探讨

电力系统继电保护与系统安全自动装置是保障电网安全运行、保护电器设备的主要装置,是组成电力系统整体不可缺少的重要部分,保护装置配置使用是否得当,直接关系到电网安全稳定运行,关系到供电的可靠性。本文叙说了如何做好继电保护的基础管理工作。

A studty of some issues about double relay protections in 220kV high voltage power grid

In this essay,the base principle about the set calculating of relay protections and the contradiction existed in the match of relay protections in electrical power system were analyzed,the different influence to the power grid when the relay protections of different types of equipment acted error or refused to act were described,too,where the 220kV power line operated in circle mode as the main regional power grid in China.Take a step forward,It described the necessity of double relay protections in the 220kV high voltage system.At the same time,the essay pointed out some problems and countermeasures faced by arranging the operating mode of relay protections when they were double equiped for the power grid equipments,so that we could get the optimization of the relay protections in avoiding act-error or act-refused,then the relay protections could offer the best effects in the electrical power system.