Publisher : The Korean Institute of Electrical Engineers
DOI : 10.5370/JEET.2013.8.2.359
Title & Authors
Switching Impulse Flashover Tests and Analysis for 765kV Jumper V-strings with Damaged Insulators Choi, In-Hyuk; Shin, Koo-Yong; Lee, Dong-Il; Lim, Jae-Sup; Kim, Young-Hong; Lee, Hyung-Kwon;
The 765kV transmission line will be maintained by live-line works for efficient operation. In order to maintain the 765kV transmission lines safely by live-line works, lineman has to know switching impulse flashover characteristics of the jumper V-strings with damaged insulators in advance. In order to know the flashover characteristics this paper carried out experimental flashover mockup tests for jumper V-string with damaged insulators in the outdoors. And it suggests flashover characteristics of the 765kV jumper V-strings also. The results will be used in estimating the safety of live working for 765kV transmission lines.
Switching impulse;Live line working;Jumper V-string;
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