应用AI6000电桥对500kV CVT进行不拆线预试方法的探讨

Discussion on Prevent Test of 500kV CVT by means of AI6000 Electric Bridge without Disconnecting Wire

不拆线预试是指在不拆除高压导线的情况下对设备进行预试,它的好处在于可以减少工作量,增加安全系数,提高工作效率。本文主要是介绍怎样在不拆线的情况下对500kV CVT进行预试工作。500kV CVT主要由三节耦合电容和两节分压电容器组成,本文详细地介绍了每个电容的测量方法以及在测量中各个电容间的互相干扰和影响,并且在最后用了一条线路CVT进行了不拆线预试,和以前拆线预试的数据相比较,得出了不拆线预试的可行性。

Prevent test without disconnecting wire means to do the prevent test in the case that HV connecting wire don't need to be discounted,its advantage is that work value would be reduced,safety factor would be increased,efficiency would be boosted.This paper is mainly for introducing how to do the prevent test of 500kV CVT without disconnecting wire,comparing with the data of prevent test with discounting wire before,and giving its feasibility.