An Operation Grouping and Its Maximum Allowable Conductor Temperature Considering Facility-conditions of Transmission Lines

송전선로의 설비특성을 고려한 운영그룹 분류 및 최고허용온도

  • 손홍관 (한국전기연구원 전력연구단) ;
  • 김병걸 (한국전기연구원 재료응용연구단) ;
  • 박인표 (한국전기연구원 전력연구단) ;
  • 안상현 (한국전기연구원 재료응용연구단) ;
  • 장태인 (한국전력공사 전력연구원 전력계통연구소 지중케이블그룹) ;
  • 최종기 (한전 전력연구원 전력계통연구소)
  • Published : 2008.11.01

Abstract

The thermal rating of a conductor are maximum continuous current capacity and short time emergency current capacity. The overload operation for a faults have an effect on a conductor lifetime. Its time duration and overload level are limited to facility conditions of transmission lines. The short time emergency current capacity in KOREA observe the KEPCO's DESIGN RULE 1210, but its rules are not included to concept of an allowable short time duration. This papers are described to the calculation concept of short time emergency current capacity considering a time duration and an overload level. And we suggested a operation grouping and its maximum conductor temperature considering facility conditions - conductor lifetime, stability of connection points, conductor height above ground and clearance, in the operating and new T/L.

Keywords

References

  1. 손홍관 외10, '송전선로의 설비특성을 고려한 단시간정격 검토', 2008년도 대한전기학회 하계학술대회논문집
  2. 손홍관 외7, '부하수준 및 인가시간에 따른 과도허용전류 산정기법', 2008년도 대한전기학회 하계학술대회논문집
  3. 산업자원부, '국내 송전선로 설비특성을 고려한 단시간 과도정격 운영기준 정립(2차년도 보고서)', 2007
  4. 산업자원부, '가공송전선 허용용량산정시스템 개발(최종)', 2005
  5. 한국전력, '송전설계기준 1210(가공송전용 전선선정기준)', 2004
  6. 한국전력 전력연구원, '송전설계기준 제 . 개정 및 보완 연구', 2001
  7. National Grid USA, 'TRANSMISSION PLANNING GUIDE'
  8. IEEE, 'Draft standard for calculating the current temperature relationship for bare overhead conductors', IEEE Standard p738, 1999
  9. CIGRE WG 22-12, 'The thermal behavior of overhead conductor', Electra, No. 144, 1992