| 发明名称 |
Automatically configuring vacuum contactor |
| 摘要 |
<p>A controller (14) for a vacuum contactor (12) or the like measures barometric pressure and provides a short impedance characterizing pulse to the coils (28,40) of the vacuum contactor coils to assess proper operating conditions of the coils and to check for coil or sensor faults.</p> |
| 申请公布号 |
EP2028676(A2) |
申请公布日期 |
2009.02.25 |
| 申请号 |
EP20080162905 |
申请日期 |
2008.08.25 |
| 申请人 |
ROCKWELL AUTOMATION TECHNOLOGIES, INC. |
发明人 |
MACLENNAN, DAVID SCOTT S.;DRAKE, REGINALD, A. |
| 分类号 |
G01R31/06;G01R31/327;H01F7/18;H01H11/00;H01H33/66;H01H33/666;H01H47/00;H01H47/02 |
主分类号 |
G01R31/06 |
| 代理机构 |
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代理人 |
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