대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)
- 대한전기학회 2000년도 추계학술대회 논문집 학회본부 A
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- Pages.171-173
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- 2000
차동전류의 변화율을 이용한 변압기의 여자돌입과 내부사고 구분 알고리즘
A Discriminating Algorithm between Magnetizing Inrush and Internal Faults of Transformers Using Difference of a differential current
초록
This paper presents a discriminating algorithm between magnetizing inrush and internal faults of transformers using difference of a differential current. Incase of inrush, change of magnetizing inductance repeats. Thus, second difference of differential current periodically shows pulse while periodic pulse is not represented in case of internal winding fault. The proposed algorithm is suitable irrespective of the amount of remanent flux.
키워드