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1. 发明授权

US5400205A Breaker fail-safe system for a multi-channel electric power generating system 失效
标题翻译：多通道发电系统的断路器故障安全系统
公开(公告)号：US5400205A
公开(公告)日：1995-03-21
申请号：US079113
申请日：1993-06-17
申请人： Robert D. Ligon , Jeffery Emmerich
发明人： Robert D. Ligon , Jeffery Emmerich
IPC分类号： H02H3/05 , H02H7/26 , H02H3/00
CPC分类号： H02H7/266 , H02H3/05
摘要： A nonvolatile fail-safe system providing protection from bus fault propagation for a multi-channel electric power generating system includes a controller which provides excitation control and protection for a first generator unit, position control for its generator control breaker (GCB) and position control for a bus tie breaker (BTB); protection logic which generates a trip signal for the BTB when a bus fault is detected isolating the load distribution bus from the tie bus, and thereafter generating an excitation isolation control signal and a GCB trip signal isolating the load distribution bus from the generator unit upon sustained presence of the bus fault. A latching generator control relay is electrically coupled in series with the excitation control and is responsive to the excitation isolation control signal for de-energizing the generator by isolating the excitation control. A circuit monitors the operational status of the controller and generates a breaker fail-safe signal upon sensing operation outside acceptable parameters; and fail-safe logic, responsive to the position status of the generator control relay at the instant of issuance of the breaker fail-safe signal, controls the position of the BTB upon failure of the controller.
摘要翻译：一种为多通道发电系统提供保护以避免总线故障传播的非易失性故障安全系统包括一个控制器，它为第一个发电机组提供励磁控制和保护，其发电机控制断路器（GCB）的位置控制和位置控制总线断路器（BTB）; 当检测到总线故障时，产生用于BTB的跳闸信号的保护逻辑，将负载分配总线与连接总线隔离，之后产生激励隔离控制信号和GCB跳闸信号，以将负载分配总线与发电机单元隔离总线故障的存在。闩锁发生器控制继电器与激励控制串联电耦合，并且响应于激励隔离控制信号，以通过隔离励磁控制来使发电机断电。电路监视控制器的运行状态，并在感测到可接受的参数之外的操作时产生断路器故障安全信号; 和故障安全逻辑，在断路器故障安全信号发出时响应于发电机控制继电器的位置状态，在控制器发生故障时控制BTB的位置。

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