浅谈双母双分段母线保护配置中的若干问题

Ponderation on the 4-section busbar relay configuration

阐述了双母双分段母线系统的保护配置方案 ,分析了双母双分段母线系统保护配置中需注意的几个问题 ,尤其是母线故障时环流的影响 ,另外分段断路器辅助触点的使用给分段死区故障带来了新的解决方案 ,但也带来了因辅助触点不可靠而产生的相应问题 。

The 4 section busbar relay configuration is introduced.It analyses several problems of the configuration that must be paid attention to.Especially the circumcurrent will influence the sensitivity of the differential protection.The using of auxiliary point of section provides a new secheme to solve the the short circuit in dead zone, but with the uncertainty of the auxiliary point, it also brings some new problems, which have been discussed and given the relevant countermeasures.