Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)

The Korean Institute of Electrical Engineers (대한전기학회)
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A Study on Adaptive Distance Protection of Double-circuit Line with Mutual Impedance and Fault Resistance

2회선 송전선로에서 상호임피던스와 고장저항을 고려한 거리계전기의 동작 특성 연구

  • Lee, Won-Seok (Dept. of Electrical Engineering, Hanyang University) ;
  • Jung, Chang-Ho (Dept. of Electrical Engineering, Hanyang University) ;
  • Lee, Jun-Kyong (Dept. of Electrical Engineering, Hanyang University) ;
  • Kim, Jin-O (Dept. of Electrical Engineering, Hanyang University)
  • Published : 2003.07.21
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Abstract

This paper describes an adaptive distance relay for double-circuit line protection with mutual impedance and fault resistance. Double-circuit lines have two operating condition; both lines of a double-circuit line are in operation and one line is switched-off and both ends of the line are grounded. For optimal distance protection, the trip region is calculated, which have respect to mutual impedance and fault resistance.

Keywords