| 发明名称 |
Vacuum insulated switching apparatus |
| 摘要 |
<p>In a vacuum bulb 1 composed of a grounded metallic vessel 2, the reliability in monitoring and measuring the vacuum pressure can be improved by providing a vacuum pressure measuring terminal 30 at a side plane of the vessel 2 to electrically separate the main circuit 13 from the measuring terminal 30. <IMAGE></p> |
| 申请公布号 |
EP0944105(A1) |
申请公布日期 |
1999.09.22 |
| 申请号 |
EP19990103610 |
申请日期 |
1999.02.24 |
| 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 |
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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