Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)

The Korean Institute of Electrical Engineers (대한전기학회)
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Development of the digital protection relay which displays the trip area in real time

실시간 사고영역을 표현하는 디지털 보호계전기 개발

  • Cho, Chul-Hee (Electro-Mechanical Research Institute, Hyundai Heavy Industries. Co, Ltd.) ;
  • Lee, Byeong-Ho (Electro-Mechanical Research Institute, Hyundai Heavy Industries. Co, Ltd.) ;
  • Kim, Yoon-Hoe (Electro-Mechanical Research Institute, Hyundai Heavy Industries. Co, Ltd.)
  • 조철희 (현대중공업(주) 기계전기연구소) ;
  • 이병호 (현대중공업(주) 기계전기연구소) ;
  • 김윤회 (현대중공업(주) 기계전기연구소)
  • Published : 2007.07.18
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Abstract

The existing digital protection relay is continuously growing with an improvement in technology. In this paper, we propose the development of the digital protection relay which displays the trip area in real time. In most of the digital protection relays monitor whether analog signal enters into the pre-determined trip area, but those aren't provide the trip area information for a operator in real time. Therefore, if the digital protection relay continuously displays the trip area in real time, the operator analysis power system status easily. This paper particularly introduces selective ground protective relay and differential protective relay with trip area and presents a method of providing the trip area information to operator in real time.

Keywords