发明名称 |
Multi-polar circuit breaker |
摘要 |
By articulating the neutral-pole switching element in a multi-pole circuit breaker, providing spring biasing to urge the two elements into a pre-determined position approximating alignment, advancing the neutral pole switching element with respect to the other switching elements and providing fixed contact elements which frictionally engage opposite sides of the neutral-pole switching contact in the closed position, the closing of the neutral circuit precedes the closing of the live circuits and the opening of the neutral circuit lags the opening of the live circuits, thus preventing arcing and transient damage to loads on the circuit.
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申请公布号 |
US4574170(A) |
申请公布日期 |
1986.03.04 |
申请号 |
US19840642496 |
申请日期 |
1984.08.20 |
申请人 |
FUJI ELECTRIC CO., LTD. |
发明人 |
ABE, KEN-ICHI;OZAKI, RYOJI |
分类号 |
H01H73/02;H01H1/42;H01H1/54;H01H71/00;H01H71/10;H01H73/00;(IPC1-7):H01H21/54 |
主分类号 |
H01H73/02 |
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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