关于母差保护与母联开关配合的探讨

发电厂和变电站的母线是极其重要的电气元件，作为其保护的母差保护在运行中起着非常重要的作用。近年来，随着电网技术的迅速发展，如SF6断路器、微机型保护的普遍采用，母线保护也出现了一些新问题。以目前国内普遍采用的母联电流相位比较式母差保护和中阻式比率制动式母差保护为例，分析了母差保护与母联开关的一些配合问题。

Consideration about Cooperation of Busbar Differential Protection and Bustie Circuit Breaker

Busbar of power plant and substation station is extremly important element,then the protection of busbar is very significant in practical operation.In recent years,with the fast development of electrical technology,such as widely use of SF_6 circuit breaker and micro-computer protection,there are a few new problems in busbar protection. The article sets bus coupler current phase-comparison and middle impedance ratio braking busbar protection as exam- pies,which are widely used,analyses the cooperating probl...