云南电力系统主网继电保护整定计算探讨

根据云南省电网的实际情况，就电网中220kW线路运用比较普遍的高频保护、三段式距离保护、四段式零序保护、综合重合闸、电流速断保护、断路器失灵保护及断路器三位位置不一致保护，介绍其整定计算机遵循的原则，以及整定计算中所遇到的一些特殊问题的处理办法。

Discussion on Calculation of Relay Protection Setting for Yunnan Main Power Network

According to the real conditions of Yunnan power network, the calculation principles for relay protection setting which should be observed are introduced. They are applied for the setting of high frequency protection, three section distance protection, four section zero sequence protection, single and three phase auto reclosing protection, current instant trip protection, breaker failure protection and position inconsistency protection for circuit breakers on three phases, which are widely used in 220 kV lines of power network. The measures to solve the problems during setting calculation are also presented.