Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference (한국전기전자재료학회:학술대회논문집)

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
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Study on Thermal Stress of Porcelain Insulator for T/L

송전용 자기애자의 열충격 특성 연구

  • 한세원 (한국전기연구원(재료응용연구단)) ;
  • 조한구 (한국전기연구원(재료응용연구단)) ;
  • 최인혁 (한국전력연구원(송전연구그룹)) ;
  • 이동일 (한국전력연구원(송전연구그룹))
  • Published : 2006.06.22
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Abstract

This study presents the thermal stress characteristics of TL porcelain insulators(healthy and ageing) by the accelerating thermal mechanical ageing test with forced temperature gradient. The test temperature gradient is $95^{\circ}C(-35{\sim}60^{\circ}C)$, it was focused to high temperature thermal stress as compared with IEC 60575 standard. There was no a discrimination in the case of healthy aluminous porcelain insulators, dissimilarly in crystoballite insulators according to this test method. It was indicated that the long tenn reliability by thermal stress was conformed reasonably through the conventional accelerating ageing test methods.

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