Improvement of Circuit-Time Product through Analysis of Operating Time of Earth Leakage Circuit-Breakers
누전차단기의 트립 동작시간 분석을 통한 전류·시간적(積) 개선

Ju-Chul Kim, Sang-Joong Lee
2012 Journal of the Korean Institute of Illuminating and Electrical Installation Engineers  
The earth leakage circuit-breakers installed to protect the human body against electrical shock have conventionally had a sensitivity current of 30 mA and an operating time of 30 ms or less. No reviews are found, however, on the operating time of the current conducting through the human body due to the electrical shock or ground fault. This paper measures the trip-operating time against the earth leakage under the condition of increased current as well as under the condition of rated
more » ... of rated sensitivity current of the earth leakage circuit-breakers. Further measurement with a prototype model showed an improved operating time of 16 ms or less under the condition of rated sensitivity current. It is expected that development of circuit-breakers with higher safety is possible if the performance of the electronic circuit can be improved.
doi:10.5207/jieie.2012.26.12.044 fatcat:d3eeoip56zcf5dc6ccnzbo5igy