公开(公告)号：EP0463860A2

公开(公告)日：1992-01-02

申请号：EP91305742.8

申请日：1991-06-25

申请人： COOPER INDUSTRIES, INC.

发明人： Dunk, Michael P. ,  Rector, Gary D. ,  Banting, John Fredrick

IPC分类号： H02H3/04 ,  G01R19/165 ,  G01R15/24

CPC分类号： H02H3/042 ,  G01R15/186 ,  G01R31/025 ,  H02H3/044

摘要： A faulted circuit detector (12,22) has an electrically isolated and remotely positioned indicator (14) which indicates fault currents in a monitored conductor (18). When a fault of a predetermined magnitude is detected, a light pulse is transmitted from the detector (12,22) to the indicator via a fibre optic cable (16) where, upon receipt, the pulse is converted to an electrical pulse causing the indicator to indicate a "fault" state. A reset circuit (56) within the indicator resets the indicator at regular intervals to the "normal" state as long as a predetermined minimum voltage is present on the monitored conductor. A test circuit (34,48,50) is also provided to allow service personnel to field test the device with the monitored conductor in an energized state.

摘要翻译： 甲故障电路检测器（12,22）具有电隔离和远程定位指示器（14），其指示在所监视的导体（18）的故障电流。 当检测到预定大小的一个故障，光脉冲是经由光缆从检测器（12,22）至所述指示器反mitted（16）其中，在接收时，脉冲转换为电脉冲，以使所述指示器 以指示“故障”状态。 指示器内的复位电路（56），只要预先确定的最小电压是存在于所监测的导体以规则的间隔指示符复位为“正常”状态。 因此，一个检验电路（34,48,50）被提供，以允许服务人员到现场测试与所监视的导体装置中，以通电状态。

公开(公告)号：EP0463860A3

公开(公告)日：1992-12-16

申请号：EP91305742.8

申请日：1991-06-25

申请人： COOPER INDUSTRIES, INC.

发明人： Dunk, Michael P. ,  Rector, Gary D. ,  Banting, John Fredrick

IPC分类号： H02H3/04 ,  G01R19/165 ,  G01R15/24

CPC分类号： H02H3/042 ,  G01R15/186 ,  G01R31/025 ,  H02H3/044

摘要： A faulted circuit detector (12,22) has an electrically isolated and remotely positioned indicator (14) which indicates fault currents in a monitored conductor (18). When a fault of a predetermined magnitude is detected, a light pulse is transmitted from the detector (12,22) to the indicator via a fibre optic cable (16) where, upon receipt, the pulse is converted to an electrical pulse causing the indicator to indicate a "fault" state. A reset circuit (56) within the indicator resets the indicator at regular intervals to the "normal" state as long as a predetermined minimum voltage is present on the monitored conductor. A test circuit (34,48,50) is also provided to allow service personnel to field test the device with the monitored conductor in an energized state.

公开(公告)号：EP0463860B1

公开(公告)日：1996-09-25

申请号：EP91305742.8

申请日：1991-06-25

申请人： COOPER INDUSTRIES, INC.

发明人： Dunk, Michael P. ,  Rector, Gary D. ,  Banting, John Fredrick

IPC分类号： H02H3/04 ,  G01R19/165 ,  G01R15/24

CPC分类号： H02H3/042 ,  G01R15/186 ,  G01R31/025 ,  H02H3/044