发明名称 |
Method and system of current transformer output magnitude compensation in a circuit breaker system |
摘要 |
A method and system to detect currents in the saturation region of a current transformer for a circuit breaker is disclosed. An example method is sensing a fault condition with a current transformer in a circuit breaker. The characteristic curve of the current transformer in a saturation mode is determined based on peak current. A current is received on the transformer. A secondary current is output from the transformer. It is determined whether the secondary current is indicative of a fault current in the saturation mode of the transformer. The breaker is tripped if the secondary current is indicative of a fault current.
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申请公布号 |
US7869169(B2) |
申请公布日期 |
2011.01.11 |
申请号 |
US20070824651 |
申请日期 |
2007.07.02 |
申请人 |
DAVISON WILLIAM;MOFFITT RYAN JAMES;STUDER II RICHARD ALLEN;MEEHLEDER STEVE M |
发明人 |
DAVISON WILLIAM;MOFFITT RYAN JAMES;STUDER, II RICHARD ALLEN;MEEHLEDER STEVE M. |
分类号 |
H01H73/08;H02H3/08 |
主分类号 |
H01H73/08 |
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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