发明名称 |
Autoranging faulted circuit indicator |
摘要 |
The disclosed fault indicator which senses current in a cable, resets in response to a minimum current and trips when the current exceeds a predetermined multiple above the average value of the current. A trip circuit senses the average value by periodic current sampling or by continuous current averaging. Maximum and minimum trip setting limit the excursion of the multiple of the average value.
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申请公布号 |
US5255148(A) |
申请公布日期 |
1993.10.19 |
申请号 |
US19900572906 |
申请日期 |
1990.08.24 |
申请人 |
PACIFIC SCIENTIFIC COMPANY |
发明人 |
YEH, THOMAS |
分类号 |
H02H3/00;H02H3/04;(IPC1-7):H02H3/00 |
主分类号 |
H02H3/00 |
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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