发明名称 |
MEASURING AND/OR SWITCHING DEVICE |
摘要 |
The application discloses methods how to arithmetically calculate a corrected effective value from a real effective value of a secondary current of an iron-cored current transformer when magnetization of the iron core reaches the saturation point during generation of the secondary current from a primary current. The corrected value simulates the case that the saturation point is not reached, thus making it possible to use a smaller than normal iron-cored current transformer in measuring and/or switching devices comprising an iron-cored current transformer, e.g. in a low-voltage circuit breaker. |
申请公布号 |
WO2009027373(A2) |
申请公布日期 |
2009.03.05 |
申请号 |
WO2008EP61089 |
申请日期 |
2008.08.25 |
申请人 |
SIEMENS AKTIENGESELLSCHAFT;KIENDL, THOMAS |
发明人 |
KIENDL, THOMAS |
分类号 |
G01R19/20;G01R15/18;H02H1/04 |
主分类号 |
G01R19/20 |
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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