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http://dx.doi.org/10.5370/KIEE.2011.60.10.1811

Switching Surge Analysis and Evaluation in Combined Transmission System with 345kV GIL  

Jang, Hwa-Youn (원광대 대학원 전기공학과)
Lee, Jong-Beom (원광대 공대 전기정보통신공학부)
Kim, Yong-Kap (원광대 공대 전기정보통신공학부)
Jang, Tae-In (한국전력공사 전력연구원)
Publication Information
The Transactions of The Korean Institute of Electrical Engineers / v.60, no.10, 2011 , pp. 1811-1816 More about this Journal
Abstract
This paper describes switching surge analysis for reclosing decision in 345kV combined transmission line with GIL. Reclosing operation should be decided based on the detailed technical analysis in combined transmission line because this line includes power cable section which is week on insulation. Insulation of power cable can be breakdown at the week point in case of reclosing moment. Therefore the detailed analysis has to be carried out by considering several conditions such as charging rate, inserting resistance, arrester, length ratio of power cable section, grounding resistance, etc. Analysis is performed by EMTP/ATP.
Keywords
GIL; XLPE cable; Switching; Surge; Overvoltage; Arrester;
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  • Reference
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