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1.发明授权公开(公告)号：US07995315B2
公开(公告)日：2011-08-09
申请号：US12172809
申请日：2008-07-14
摘要： Disclosed herein is a ground fault protection circuit for an electrical distribution system, the electrical distribution system having a plurality of power sources each having an associated main circuit breaker and being electrically coupled to an associated load with a tie circuit breaker electrically coupled therebetween, the main and tie circuit breakers having associated therewith phase and neutral current transformers (CTs) for sensing an associated current. The ground fault protection circuit includes first, second and third auxiliary differential current transformers, each in signal communication with outputs of respective phase and neutral current transformers associated with respective first and second main circuit breakers and a tie circuit breaker. A control circuit has a defined topology that provides signal communication between each of the auxiliary differential current transformers.
摘要翻译： 本文公开了一种用于配电系统的接地故障保护电路，该配电系统具有多个电源，每个电源具有相关联的主断路器并且电耦合到相关联的负载，其中电连接在它们之间的接线断路器，主电路 以及具有相关联的用于感测相关电流的相位和零线电流互感器（CT）的断路器。 接地故障保护电路包括第一，第二和第三辅助差动电流互感器，每个互感器与与相应的第一和第二主断路器相关的各相和零线电流互感器的输出信号通信，以及连接断路器。 控制电路具有定义的拓扑，其提供每个辅助差动电流互感器之间的信号通信。
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2.发明申请GROUND FAULT PROTECTION CIRCUIT FOR MULTI-SOURCE ELECTRICAL DISTRIBUTION SYSTEM 有权多源电力分配系统的接地故障保护电路公开(公告)号：US20100008000A1
公开(公告)日：2010-01-14
申请号：US12172809
申请日：2008-07-14
IPC分类号： H02H3/00
摘要： Disclosed herein is a ground fault protection circuit for an electrical distribution system, the electrical distribution system having a plurality of power sources each having an associated main circuit breaker and being electrically coupled to an associated load with a tie circuit breaker electrically coupled therebetween, the main and tie circuit breakers having associated therewith phase and neutral current transformers (CTs) for sensing an associated current. The ground fault protection circuit includes first, second and third auxiliary differential current transformers, each in signal communication with outputs of respective phase and neutral current transformers associated with respective first and second main circuit breakers and a tie circuit breaker. A control circuit has a defined topology that provides signal communication between each of the auxiliary differential current transformers.
摘要翻译： 本文公开了一种用于配电系统的接地故障保护电路，该配电系统具有多个电源，每个电源具有相关联的主断路器并且电耦合到相关联的负载，其中电连接在它们之间的接线断路器，主电源 以及具有相关联的用于感测相关电流的相位和零线电流互感器（CT）的断路器。 接地故障保护电路包括第一，第二和第三辅助差动电流互感器，每个互感器与与相应的第一和第二主断路器相关的各相和零线电流互感器的输出信号通信，以及连接断路器。 控制电路具有定义的拓扑，其提供每个辅助差动电流互感器之间的信号通信。
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