Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)
- 2005.07a
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- Pages.359-361
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- 2005
A study of impedance relay operation and voltage instability caused by over load of neighborhood line at contingency of heavy load line
증조류 선로 고장시 인접선로 과부하에 의한 거리계전기 동작 및 전압불안정 현상 연구
- Yun, Ki-Seob (Korea Electric Power Corporation(KEPCO)) ;
- Lee, Hyoung-Han (Korea Electric Power Corporation(KEPCO)) ;
- Kim, Chang-Gon (Korea Electric Power Corporation(KEPCO)) ;
- Ahn, Bo-Soon (Korea Electric Power Corporation(KEPCO))
- Published : 2005.07.18
Abstract
This paper presents the method of countermeasures before voltage collapse by load encroachment(impedance of load ability on R-X locus decrease toward zero point) and describes a study of impedance relay(zone-3) operation and voltage instability caused by over load of neighborhood line at contingency of heavy load line.
Keywords