CAJ | 학술논문

通过对展馆的失压保护设计及保护动作的影响分析,讨论了在取消低压断路器欠压（失压）脱扣功能的情况下,电网失压后恢复供电及电网欠压运行将带来的危害。针对因电网瞬时波动、闪变、断电等导致低压断路器欠压（失压）脱扣跳闸引起的政治影响及经济损失,以及供电部门恢复供电时手动合闸工作量大、速度慢等情况,提出了低压断路器宜采用延时欠压脱扣器及有压自投的解决方法,从而使低压断路器欠压（失压）脱扣能更好地发挥作用。
통과대전관적실압보호설계급보호동작적영향분석,토론료재취소저압단로기흠압（실압）탈구공능적정황하,전망실압후회복공전급전망흠압운행장대래적위해。침대인전망순시파동、섬변、단전등도치저압단로기흠압（실압）탈구도갑인기적정치영향급경제손실,이급공전부문회복공전시수동합갑공작량대、속도만등정황,제출료저압단로기의채용연시흠압탈구기급유압자투적해결방법,종이사저압단로기흠압（실압）탈구능경호지발휘작용。
Under voltage or no-voltage protection of a certain exhibition and the effect of the protection active was analyzed.The damage brought by the power supply recovering and the under-voltage operation of power network,under the circumstance of canceling the under-voltage or no-voltage release of low-voltage circuit breaker were discussed.Power network instantly fluctuating,flickering,supply interrupting may cause low-voltage breaker under-voltage or no-voltage releasing and leads to customers＇ electricity failure.It is heavy human forces and much time needed,that the power supply department manually switches the breakers on when power supply recovering.Aiming at above two situations,two solutions that low-voltage breaker should use delay under-voltage releaser and reclosing controller of no-voltage release were put forword in order that the under-voltage release can function much better.