Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference (한국전기전자재료학회:학술대회논문집)
- 2007.11a
- /
- Pages.478-479
- /
- 2007
Analysis of Tripping Characteristics of Earth Leakage Circuit Breakers against Parallel Arcing
병렬아크에 대한 누전차단기의 트립특성 분석
- Kim, Il-Kwon (Korea Maritime University) ;
-
Park, Dae-Won
(Korea Maritime University)
;
-
Choi, Su-Yeon
(Korea Maritime University)
;
- Cho, Young-Jin (National Institute of Scientific Investigation) ;
-
Kil, Gyung-Suk
(Korea Maritime University)
- 김일권 (한국해양대학교 전기전자공학부) ;
-
박대원
(한국해양대학교 전기전자공학부)
;
-
최수연
(한국해양대학교 전기전자공학부)
;
- 조영진 (국립과학수사연구소) ;
-
길경석
(한국해양대학교 전기전자공학부)
- Published : 2007.11.01
Abstract
Many electrical fires are occurred by leakage currents and sparks generated by a short circuit. Earth leakage circuit breakers (ELCBs) should be tripped at the moment of the faults mentioned above. In this paper, we described the tripping characteristics of ELCBs against parallel arcing faults. A diesel engine generator with the capacity of 375 kVA source was adopted to provide enough large current when a parallel arcing occurred. The experimental results showed that most ELCBs we experimented were not tripped against short-duration pulse currents produced by parallel arcing because the ELCBs are designed to be tripped by a large current with long duration similar to power frequency.
Keywords