The Evaluation and Countermeasures for the 2nd Arc Reduction for the High Speed Reclosing in 765kV Transmission Line

765kV 계통의 고속도 다상 재폐로 관련 2차 아크 검토 및 억제 방안

  • Ahn, J.S. (765kV Project Office, T&S Dept KEPCO) ;
  • Kim, J.Y. (765kV Project Office, T&S Dept KEPCO) ;
  • Jin, J.Y. (765kV Project Office, T&S Dept KEPCO)
  • 안정식 (한국전력공사 송변전처 송전전압 격상추진반) ;
  • 김재영 (한국전력공사 송변전처 송전전압 격상추진반) ;
  • 진중용 (한국전력공사 송변전처 송전전압 격상추진반)
  • Published : 1995.07.20

Abstract

KEPCO is now going on upgrading the highest system voltage from 345kV to 765kV since 1992. The main reason of this 765kV project is the bulk power transmission from the power generation sites at the East and West coasts to the Kyeong-in area. The first 765kV transmission lines will be constructed by 1998 and operated as 345kV level until 2001. This system needs a detailed evaluation of the 2nd arc in case of 765kV transmission line outages and the countermeasures for the fast arc reduction for the successful high speed reclosing. So, this paper deals with the simulation results of the 2nd arc characteristics using EMTP and comparison of Sh.R and HSGS for the reduction methods.

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