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http://dx.doi.org/10.5370/KIEE.2012.61.6.910

Transferred OverVoltages on LV sides in Multigrounded Neutral during Line to Ground Fault on Distribution Systems  

Choi, Sun-Kyu (한국전력공사 전력연구원)
Choi, Jong-Kee (한국전력공사 전력연구원)
Kim, Kyoung-Hun (한국전력공사 인재개발원)
Choi, Myeong-Ho (한국전력공사 서울지역본부 성동지사)
Lee, Byung-Sung (한국전력공사 전력연구원)
Publication Information
The Transactions of The Korean Institute of Electrical Engineers / v.61, no.6, 2012 , pp. 910-915 More about this Journal
Abstract
In this paper we propose multi-grounded neutral design method which was considered of transferred transient overvoltage when line to neutral fault occurs. Specially, In order to confirm the actual transient overvoltage magnitude which occurs on neutral line, we considered some screening(shielding) effects. The screening coefficient was deducted from field test results and calculation in a distribution line which is identical with an actual power line. The purpose of this paper is to attempt to suggest the guidance for grounding skystem design considering limitation of overvoltage for LV side in IEC 61936. The result is based on EMTP simulation and real field faults situation in distribution lines.
Keywords
Transferred overvoltage; Multi-grounded neutral; Line-Neutral fault; EMTP; Field test;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
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