DOI QR코드

DOI QR Code

송전용 자기재 애자의 성능평가 및 가속열화시험

Study on Performance and Aging Test of Porcelain Insulators for Transmission Line

  • 한세원 (한국전기연구원 신소재응용연구그룹) ;
  • 조한구 (한국전기연구원 신소재응용연구그룹) ;
  • 박기호 (한국전기연구원 신소재응용연구그룹) ;
  • 이동일 (전력연구원 송전기술연구팀) ;
  • 최인혁 (전력연구원 송전기술연구팀)
  • 발행 : 2003.09.01

초록

The suspension insulators are subjected to harsh environments in service for a long time. The long-term reliability of tile insulators is required for both mechanical and electrical performances. This study describes some basic performance tests and accelerated aging test by cool-heat cycling methods and thermal mechanical performance test methods on alumina porcelain insulators (new and aged) used for transmission line in KOREA. There was no fail in electrical and mechanical performance tests such as a high voltage strength, a flashover voltage, and an impact strength in all samples. But in the case of accelerating aging tests which have above 9$0^{\circ}C$ temperature gradient, fracture phenomena was happened by a thermal shock in tile aged sample(sample A) with low alumina porcelain body. It was indicated that sample A was more severely aged than other samples. According to results of HRB test and microstructural analysis, it was reasoned that insulator bodies with the matrix reinforced with alumina crystalline phase have advantages over the suppression of crack advance. And cool-heat aging and mechanical thermal ageing tests shows that a temperature gradient is more effective to accelerating than a cycling number.

키워드

참고문헌

  1. 1999년-2000년 통계 2000년 송전설비 고장분석 및 대책자료
  2. TIEE, Japan v.117-B no.12 현수애자의 장기신뢰성에 관한 연구 Kenji Morita;Yoshihiro Suzuki;Hiroshi Noazki
  3. 전기협동연구 v.27 no.3 배전선 절연사고 방지대책
  4. ES 131-540~543, 한전 구매시방서 250mm 소켓형 현수애자
  5. IEC 575 Thermal Mechanical Performance Test and Mechanical Performance Test on String Insulator Units
  6. 애자
  7. IEEE PAS v.PAS-102 no.8 Cement growth failure of porcelain suspension insulators E.A.Cherney https://doi.org/10.1109/TPAS.1983.317959
  8. IEEE PAS v.PAS-102 no.8 Cement growth failure of porcelain suspension insulators E.A.Cherney https://doi.org/10.1109/TPAS.1983.317959
  9. 전기전자재료학회 2002년 추계학술대회논문집 v.15 송전용 자기재 애자의 열화시험 평가기술 한세원;조한구;박기호
  10. 전기전자재료학회 2002년 추계학술대회논문집 v.15 송전용 자기재 애자의 시멘트 변위응력에 관한 시뮬레이션 한세원;조한구;우병철