Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)
- 1999.07a
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- Pages.351-353
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- 1999
Electric Field Analysis of 170kV 50kA Class SF6 GCB Without Capacitor
170kV 50kA 콘덴서 불용형 SF6 가스절연개폐기의 극간 전계해석
- Song, Tae-Hun (Hyundai Heavy Industries Co., Ltd.) ;
- Bae, Dong-Jin (Hyundai Heavy Industries Co., Ltd.) ;
- Choi, Young-Chan (Hyundai Heavy Industries Co., Ltd.) ;
- Kim, Ik-Mo (Hyundai Heavy Industries Co., Ltd.) ;
- Yoon, Chi-Young (Hyundai Heavy Industries Co., Ltd.) ;
- Kang, J.H. (Hyundai Heavy Industries Co., Ltd.)
- 송태헌 (현대중공업 (주)) ;
- 배동진 (현대중공업 (주)) ;
- 최영찬 (현대중공업 (주)) ;
- 김익모 (현대중공업 (주)) ;
- 윤치영 (현대중공업 (주)) ;
- 강종호 (현대중공업 (주))
- Published : 1999.07.19
Abstract
In this paper, electric field analysis of 170kV class GCB is carried out. Considering the movement of arcing contacts during circuit interruption, electric field analysis between moving and fixed contacts is performed with changing the stroke length. From analysis results, electric field stresses are high at stationary arcing contact, moving arcing contact and varies at changing nozzle shapes. Specially, the stationary arcing contact shape has an significant effect on the capacitive small current interruption and the reduction of the electric field stress at this area is important. Varying the shape of stationary arcing contact, electric field analysis is carried out and the optimal shpae of the fixed arcing contact where the electric field stress is low is designed.
Keywords