Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)
- 2002.07a
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- Pages.9-11
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- 2002
A Percentage Currant Differential Relaying Algorithm for Bus Protection Using an Advanced Compensation Algorithm of the Secondary Current of CTs
개선된 변류기 2차 전류 보상알고리즘을 적용한 모선보호용 비율전류차동 계전방식
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Kang, Yong-Cheol
(Chonbuk National University, NPT Center)
;
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Yun, Jae-Sung
(Chonbuk National University, NPT Center)
;
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Lim, Ui-Jai
(Chonbuk National University, NPT Center)
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강용철
(전북대학교 전자정보공학부, 차세대전력기술연구센터)
;
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윤재성
(전북대학교 전자정보공학부, 차세대전력기술연구센터)
;
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임의재
(전북대학교 전자정보공학부, 차세대전력기술연구센터)
- Published : 2002.07.10
Abstract
This paper proposes a percentage current differential relaying algorithm for bus protection using an advanced compensation algorithm of the secondary current of CTs. A percentage current differential relaying algorithm may maloperate in case of external faults with CT saturation. Thus, it needs an additional method to cope with CT saturation. The advanced compensation algorithm is unaffected by a remanent flux. The proposed relaying algorithm does not need any additional methods for CT saturation and is unaffected by the remanent flux and has the wide operating zone of current differential relays.
Keywords