CAJ | 학술논문

文章分析了一起低压并联电抗器差动保护误动事故，通过现场录波数据仿真分析，证明了大量非周期分量的存在，使电抗器两侧电流互感器传变特性不一致，导致了差动保护动作。而通过基于参数识别的并联电抗器保护方法的现场数据仿真分析，解决了低压并联电抗器保护中存在的这一问题。
문장분석료일기저압병련전항기차동보호오동사고，통과현장록파수거방진분석，증명료대량비주기분량적존재，사전항기량측전류호감기전변특성불일치，도치료차동보호동작。이통과기우삼수식별적병련전항기보호방법적현장수거방진분석，해결료저압병련전항기보호중존재적저일문제。
The paper analyzes the misoperation of a low voltage shunt reactor differential protection .The simulation analysis of the recorded wave data , proves the existence of a large number of non periodic component , making the inconsistent of transfer characteristics on both sides of the current transformer , to cause the misoperation of the differential protection .The simulation analysis of the recorded wave data proves the method of shunt reactor protection based on parameter identification can solve successfully the problem existing in the low voltage shunt reactor protection .