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公开(公告)号：US4163269A
公开(公告)日：1979-07-31
申请号：US794356
申请日：1977-05-06
摘要： A ground fault and fire detector system for an A.C. electrical power distribution apparatus including a multi-pole circuit interrupter to disconnect a poly-phase electrical power supply from a load. A single-pole circuit device is operatively connected to the circuit interrupter for controlling its operation. Ground fault sensing circuitry is operatively positioned with respect to at least one wire for initiating a fault current. The single-pole circuit device is responsive to the fault current for activating the circuit interrupter to disconnect the power supply from the load.
摘要翻译： 一种用于包括多极断路器的交流电配电装置的接地故障和火灾探测器系统，以从负载断开多相电力供应。 单极电路装置可操作地连接到电路断续器，用于控制其操作。 接地故障感测电路相对于至少一根导线可操作地定位，用于启动故障电流。 单极电路装置响应于故障电流来激活电路断路器以将电源与负载断开。
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公开(公告)号：USRE31147E
公开(公告)日：1983-02-08
申请号：US289078
申请日：1981-07-31
摘要： A ground fault and fire detector system for an A.C. electrical power distribution apparatus including a multi-pole circuit interrupter to disconnect a poly-phase electrical power supply from a load. A single-pole circuit device is operatively connected to the circuit interrupter for controlling its operation. Ground fault sensing circuitry is operatively positioned with respect to at least one wire for initiating a fault current. The single-pole circuit device is responsive to the fault current for activating the circuit interrupter to disconnect the power supply from the load.
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