发明名称 |
Vacuum-type circuit breaker |
摘要 |
A vacuum-type circuit breaker comprising an evacuated container, and a pair of contacts disposed in the container and adapted to be moved between an open position and a closed position to permit a circuit breaking arc to be generated across the contacts, the contacts being made of a copper alloy containing manganese. The vacuum-type circuit breaker provided with the contacts of the aforementioned type has a higher dielectric strength than conventional vacuum-type circuit breakers.
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申请公布号 |
US4229631(A) |
申请公布日期 |
1980.10.21 |
申请号 |
US19780922368 |
申请日期 |
1978.07.06 |
申请人 |
HITACHI, LTD. |
发明人 |
ARAKAWA, HIDEO;NAMEKAWA, TAKASHI;KUNIYA, KEIICHI;SUGAWARA, HIROYUKI |
分类号 |
H01H33/66;H01H1/02;H01H1/025;(IPC1-7):H01H33/66 |
主分类号 |
H01H33/66 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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