Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)
- 2005.07a
- /
- Pages.444-446
- /
- 2005
Current differential relay for transformer protection combined with a CT compensating algorithm
보상 알고리즘을 적용한 변압기 보호용 전류차동 계전 방식
-
Kang, Yong-Cheol
(Chonbuk National University, NPTC)
;
-
Lee, Byung-Eun
(Chonbuk National University, NPTC)
;
- Jin, Enshu (Chonbuk National University, NPTC) ;
- Park, Jong-Min (Chonbuk National University, NPTC) ;
- So, Soon-Hong (Chonbuk National University, NPTC) ;
- Hwang, Tea-Keun (Chonbuk National University, NPTC) ;
- Kim, Yeon-Hee (Chonbuk National University, NPTC)
-
강용철
(전북대학교, 차세대 전력기술 연구센터)
;
-
이병은
(전북대학교, 차세대 전력기술 연구센터)
;
- 김은숙 (전북대학교, 차세대 전력기술 연구센터) ;
- 박종민 (전북대학교, 차세대 전력기술 연구센터) ;
- 소순홍 (전북대학교, 차세대 전력기술 연구센터) ;
- 황태근 (전북대학교, 차세대 전력기술 연구센터) ;
- 김연희 (전북대학교, 차세대 전력기술 연구센터)
- Published : 2005.07.18
Abstract
This paper describes a current differential relaying algorithm for power transformers with an advanced compensation algorithm for the secondary current of CTs. The comparative study was conducted with and without the compensating algorithm. The algorithm can reduce the operating time of the relay in the case of an internal fault and improve security for external faults. The performance of the proposed algorithm was investigated when the C100 CT, a quarter of the rated CT(C400), is used.
Keywords