发明名称 |
Circuit breaker trip unit with zone selective interlock and system monitoring |
摘要 |
A zone-selective-interlocking system for an electrical power distribution system that has at least one upstream breaker and at least one downstream breaker is provided. Each breaker in the power distribution system has a zone-selective-interlocking circuit that includes a zone-selective-interlocking-input circuit and a zone-selective-output circuit. The zone-selective-interlocking system also includes a monitoring device to monitor the voltage sent from the zone-selective-interlocking-output circuit of the at least one downstream breaker to the zone-selective-interlocking-input circuit of the at least one upstream breaker and determine whether there is a proper or improper connection between the upstream and downstream breaker and whether the downstream breaker is sending a restraint signal to the upstream breaker.
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申请公布号 |
US7570471(B2) |
申请公布日期 |
2009.08.04 |
申请号 |
US20070676532 |
申请日期 |
2007.02.20 |
申请人 |
UTILITY RELAY COMPANY |
发明人 |
WEIHER HELMUT;PATTERSON JEFFREY W.;FLEISCHER RICHARD C. |
分类号 |
H02H3/001 |
主分类号 |
H02H3/001 |
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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