Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference (한국전기전자재료학회:학술대회논문집)
- 2002.07b
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- Pages.890-893
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- 2002
Contruction and Performance Evaluation of the Surge Arrester for Transmission Class
송전급 피뢰기의 구조와 성능평가
Abstract
Since 1970s, varistors using metal-oxide resistors have been applied to Gapless surge arresters for power system. In the paper, the structure of metal-oxide surge arresters without gaps for 362kV GIS which is developed the first in korea has been introduced. And the main evaluation items for the metal-oxide resistors which are reference voltage test, residual voltage test, long duration current impulse withstand test and operating duty test is tested and evaluated.
Keywords
- GIS;
- Shield;
- Temporary-overvoltage;
- Gapless;
- ZnO element;
- Line discharge;
- Long-duration;
- High current;
- Pressure relief