公开(公告)号：US4054934A

公开(公告)日：1977-10-18

申请号：US662248

申请日：1976-02-27

申请人： Richard E. Riebs

发明人： Richard E. Riebs

IPC分类号： H02H1/00 ,  H02H3/093 ,  H02H3/08

CPC分类号： H02H3/093 ,  H02H1/0069

摘要： A solid state inverse overcurrent relay having a long slender wire connected to respond to a current which is proportional to the line current in a power system. An infrared detector or phototransistor is positioned to sense a predetermined color of radiation from the wire and is connected to fire a silicon controlled rectifier which is connected in series with a trip coil for a circuit breaker. The trip coil and silicon controlled rectifier are connected to an independent DC power source. The long slender wire on energization responds to the current which is proportional line current with the same time current characteristic as a fuse. In an alternate embodiment of the invention the relay is connected to the power system through a bridge rectifier which provides the DC current for operating both the heat responsive wire as well as the infrared detector.

摘要翻译： 固态反向过电流继电器，其具有连接的长细线，以响应与电力系统中的线路电流成比例的电流。 定位红外检测器或光电晶体管以感测来自导线的预定颜色的辐射，并且连接以激发与用于断路器的跳闸线圈串联连接的可控硅整流器。 跳闸线圈和可控硅整流器连接到独立的直流电源。 通电时长的细长电线将以与保险丝相同的时间电流特性作为比例线路电流的电流进行响应。 在本发明的替代实施例中，继电器通过桥式整流器连接到电力系统，桥式整流器提供用于操作热响应导线以及红外检测器的DC电流。

公开(公告)号：US4345291A

公开(公告)日：1982-08-17

申请号：US142433

申请日：1980-04-21

申请人： Richard E. Riebs

发明人： Richard E. Riebs

IPC分类号： H01H31/04 ,  H02H7/28 ,  H02H7/26

CPC分类号： H02H7/28 ,  H01H31/04 ,  H02H3/006

摘要： This invention relates generally to underground electric power distribution systems. In particular, it relates to underground loop feed circuits which include reclosers and transformers and a plurality of high frequency actuated normally closed isolator switches for automatically locating and sectionalizing portions of the loop circuit in which faults originate. The actuator switches between which a fault occurs are armed in response to a fault current and only those switches which are armed are opened thereby isolating the faulted section of cable. The remaining actuator switches remain closed.

摘要翻译： 本发明一般涉及地下电力配电系统。 特别地，它涉及包括重合器和变压器的地下回路馈电电路以及用于自动定位和分段故障所在的环路的部分的多个高频致动常闭隔离开关。 发生故障的执行器切换被布防以响应故障电流，并且只有那些布防的开关被打开，从而隔离电缆的故障部分。 剩余的执行器开关保持关闭。