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1. 发明授权

US5973899A Automated power feeder restoration system and method 失效
标题翻译：自动供电器恢复系统及方法
公开(公告)号：US5973899A
公开(公告)日：1999-10-26
申请号：US151383
申请日：1998-09-10
申请人： Bradley R. Williams , C. Thomas Eyford, III , Dean H. Miller
发明人： Bradley R. Williams , C. Thomas Eyford, III , Dean H. Miller
IPC分类号： H02H3/06 , H02H7/30 , H02H7/26
CPC分类号： H02H7/30 , H02H3/063 , H02J3/006 , Y04S10/525
摘要： A feeder restoration method starts in response to an overcurrent fault on a feeder (22) that causes a circuit breaker (42) to trip open, reclose once, trip again, and attempt to reclose again. During the time period between the first and second reclosings, any remote sectionalizing switches (46) on the faulty feeder are opened if they have also sensed the overcurrent fault, and a substation processor (50) evaluates the status of the faulty feeder and an alternate feeder (32, 34). After the second trip of the circuit breaker, the processor verifies whether the remote sectionalizing switch was closed and a remote tie switch (40) to the alternate feeder was open. If the circuit breaker locks open, the substation processor determines whether the remote sectionalizing switch did not sense the overcurrent condition (which indicates that the fault is between the circuit breaker and the sectionalizing switch) or simply failed to open. The processor then verifies that the remote sectionalizing switch voltage is zero and opens the switch. The processor next determines whether the alternate feeder and its associated transformer (30) and circuit breaker (44) can pick up the dropped load, and if they can, the substation processor modifies the alternate circuit breaker trip current settings to accommodate the new total load plus a surge current and closes the remote tie switch to transfer the load to the alternate feeder.
摘要翻译：馈线恢复方法响应于馈电器（22）上的过电流故障而开始，导致断路器（42）跳闸打开，重新闭合一次，再次跳闸，并尝试重新闭合。在第一和第二重合闸之间的时间段期间，如果故障进给器上的任何远程分段开关（46）也已经检测到过电流故障，并且变电站处理器（50）评估故障馈线的状态，进料器（32,34）。在断路器的第二次跳闸之后，处理器验证远程分段开关是否关闭，并且与替代进料器的远程联动开关（40）打开。如果断路器锁定，变电站处理器确定远程分段开关是否没有感测到过电流条件（表明故障位于断路器和分段开关之间）或者简单地不能打开。然后处理器验证远程分段开关电压为零并打开开关。接下来，处理器确定替代馈线及其相关联的变压器（30）和断路器（44）是否可以拾取掉落的负载，并且如果可以，变电站处理器修改备用断路器跳闸电流设置以适应新的总负载加上浪涌电流并关闭远程连接开关以将负载传送到备用馈线。

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