6kV厂用电系统操作过电压的危害及其抑制对策

Impact of switching over voltage of 6 kV auxiliary power system and countermeasures

介绍了６ ｋＶ厂用电系统用真空开关开断感性负载操作过电压的危害和抑制对策， 重点介绍采用带间隙氧化锌避雷器保护器（ＴＢＰ） 作为过电压抑制措施的保护可行性和安装位置分析， 给出在云浮电厂的实施效果。

This paper introduces the harmfulness and restraining measures of over voltage resulting from inductive load switching by vacuum switches in 6 kV auxiliary power system.The feasibility of using trident building up protector(TBP)to restrain the over voltage is focused on.The installation position analysis of TBP and the implementation results of the proposed method in Yunfu Power Plant are given as well.