한국전자통신학회논문지 (The Journal of the Korea institute of electronic communication sciences)

한국전자통신학회 (Korea Institute of Electronic Communication Science)
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전자기 반발 구동장치를 사용한 고속 차단기 개발

Development of High Speed Circuit Breaker using Electromagnetic Repulsion Actuator

  • 황광수 (국립목포대학교 대학원) ;
  • 김영일 (인텍전기전자) ;
  • 문채주 (국립목포대학교 스마트그리드연구소)
  • 투고 : 2022.04.10
  • 심사 : 2022.06.17
  • 발행 : 2022.06.30
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초록

배전분야 전력계통에 적용되는 보호기기류는 변전소 차단기, 배전선로의 리클로저, 최소 전류 용량 회로, 고장구간 차단기 등이 있다. 이들은 부분 정전이나 대규모 사고를 방지하고 선로의 순간고장 또는 영구고장 발생 시 정상 계통이 건전성을 유지할 수 있도록 광역 정전 파급을 방지한다. 그러나 사고가 발생할 경우 변전소 차단기와 배전선로 보호기기 간의 보호협조 미비로 인하여 광역 정전을 초래할 수 있다. 더 좋은 전력시스템의 건전성을 확보하기 위하여 1주기(16ms) 이내로 동작하는 차단기를 개발할 필요성이 요구된다. 본 연구에서는 친환경 가스절연 방식의 고속도 차단기를 개발하였으며, IEC 62271-111 표준에 기반한 시험에서 우수한 결과를 얻었다. 이 기기는 고장구간을 정확하고 빠르고 신속하게 분리하여 광역 정전 예방에 기여할 것으로 기대된다.

In the distribution system, there are multiple power protection systems such as circuit breakers at substations, and reclosers, minimum circuit ampacities, fault interrupters on distribution lines. They are widely used to prevent partial outages, cascading power failure or blackout so that other healthy systems could maintain the integrity in case of the instant fault or permanent failure on the power lines. However, when a fault happens, it could cause a major black out due to the lack of the protection cooperation between the protection relay of the circuit breaker at a substation and a protection system on the distribution lines. To achieve the power system integrity better, it is required to develop the circuit breaker which can be operational within 1 cycle(16ms). In this study, the high speed circuit breaker which is filled up with eco-friendly gas is developed. This equipment achieved an excellent test results based on IEC 62271-111 standard. It is respected that this equipment would contribute to prevent the wide area blackout by isolating a fault area quicker and faster.

키워드

참고문헌

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