The Study of the Verification Test for Development of Contacts(50kA) of Making Switch and Back Up Breaker

대용량(50kA)의 Making Switch와 Back Up Breaker 접점 개발에 따른 검증시험의 연구

The Back Up Breaker and Making Switch are very important equipments for the short circuit test facility, and contacts are the most important parts of the above switches. There are very many kind of contacts according to switches characteristic and should be done the verification test before use, especially development contacts. This study describes the class of switches, arc chute, material of whole contacts and essential test for verification. The essential test for verification are dielectric test, mechanical operation test, short-time withstand current test, load current breaking test, and short-circuit making current test etc.