대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)
- 대한전기학회 2011년도 제42회 하계학술대회
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- Pages.519-520
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- 2011
측정 위치에 따른 GIS에서 VFTO 상승률 분석
Analysis of Rate-of-rise of VFTO in GIS according to Measurement Point
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Oh, Yun-Sik
(Sungkyunkwan University) ;
- Seo, Hun-Chul (Sungkyunkwan University) ;
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Kim, Chul-Hwan
(Sungkyunkwan University)
- 발행 : 2011.07.20
초록
In Gas Insulated Substation(GIS), Very Fast Transient Overvoltages(VFTOs) are generated by the switching operation of disconnector or circuit breaker and it is propagated to each component of GIS. Each component of GIS is modeled by lumped line model and distributed line model based on equivalent circuits. The various cases which can be operated and the various closing point-on-wave are considered. In this paper, magnitude and rate-of-rise of VFTO are simulated and analyzed by comparing the simulation results. Measurements are performed at transformer and circuit breaker.
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