지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2014.10
- 수록면
- 1,364 - 1,370 (7page)
이용수
초록· 키워드
오류제보하기
Power system fault analysis has been based on symmetrical component method, which describes power system elements by positive, negative and zero sequence impedance. Obtaining accurate line impedances as possible are very important for estimating fault current magnitude and setting distance relay accurately. Especially, accurate calculation of zero sequence impedance is important because most of transmission line faults are line-to-ground faults, not balanced three-phase fault. Since KEPCO has started measuring of transmission line imepdance at 2005, it has been revealed that the measured and calculated line impedances are well agreed within reasonable accuracy. In case of underground transmission lines, however, large discrepancies in zero sequence impedance were observed occasionally. Since zero sequence impedance is an important input data for distance relay to locate faulted point correctly, it is urgently required to analyze, detect and consider countermeasures to the source of these discrepancies. In this paper, development of pre/post processor to ATP (Alternative Transient Program) version of EMTP (Electro-Magnetic Transient Program) for sequence impedance calculation was described. With the developed processor ATP-cable, effects of ground resistance and ECC (Earth Continuity Conductor) on sequence impedance were analyzed.
목차
Abstract
1. 서론
2. 본론
3. 결론
References
참고문헌 (11)
참고문헌 신청
Korea Power Exchange / 2010 / Casebook of Significant Power System Faults :67
Korea Electric Powr Corporation / 1991 / A Study on Caculation Method for Sequence Impedance and Maximum Permissible Operating Current Capacity of Underground Transmission Lines (Final Report)
최종기 / 2013 / 실계통 345kV 지중송전선 대칭좌표 임피던스의 해석 / 전기학회논문지 62(7):905~912
2011 / BS 7430, Code of Practice for Protective Earthing of Electrical Installations :64~67
2013 / CIGRE WG B1.30, Cable Systems Electrical Characteristics
Korea Electric Powr Corporation / 1991 / A Study on Caculation Method for Sequence Impedance and Maximum Permissible Operating Current Capacity of Underground Transmission Lines (Final Report)
최종기 / 2013 / 실계통 345kV 지중송전선 대칭좌표 임피던스의 해석 / 전기학회논문지 62(7):905~912
2011 / BS 7430, Code of Practice for Protective Earthing of Electrical Installations :64~67
2013 / CIGRE WG B1.30, Cable Systems Electrical Characteristics
이 논문의 저자 정보
이 논문과 함께 이용한 논문
최근 본 자료
댓글(0)
0
UCI(KEPA) : I410-ECN-0101-2015-500-002751048