| 发明名称 |
Vacuum insulated switching apparatus |
| 摘要 |
A vacuum switch 1 includes a grounded vacuum vessel 2. The reliability of monitoring and measuring the vacuum pressure is improved by providing a vacuum pressure measuring terminal 30 at a side plane of the vacuum vessel 2 such that a main circuit 13 and the measuring terminal 30 are electrically separated from each other.
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| 申请公布号 |
US6153846(A) |
申请公布日期 |
2000.11.28 |
| 申请号 |
US19990258311 |
申请日期 |
1999.02.26 |
| 申请人 |
HITACHI, LTD. |
发明人 |
MORITA, AYUMU;NATSUI, KENICHI;TANIMIZU, TORU |
| 分类号 |
G01L21/00;H01H33/66;H01H33/668;(IPC1-7):H01H33/66;G01L21/30;G01R31/327 |
主分类号 |
G01L21/00 |
| 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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