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1. 发明申请

WO1996022541A1 FAULT CURRENT SENSOR DEVICE WITH RADIO TRANSCEIVER 审中-公开
标题翻译：具有无线电收发器的故障电流传感器装置
公开(公告)号：WO1996022541A1
公开(公告)日：1996-07-25
申请号：PCT/US1996001408
申请日：1996-01-22
申请人： PACIFIC GAS AND ELECTRIC COMPANY , LAU, Ken , YEE, Jimmie , MAYEDA, Rodger , RICCOMINI, Julian , ILYIN, Mary
发明人： PACIFIC GAS AND ELECTRIC COMPANY
IPC分类号： G01R31/02
CPC分类号： H02H1/0007 , G01R19/25 , G01R31/025 , H02H1/0061 , H02H1/06
摘要： A fault current sensor device (1) which can detect and distinguish abnormal current events such as momentary outage, sustained outage, normal overload, and inrush on an alternating current overhead or underground power transmission or distribution line (2). The sensing device (1) is attached to the power line (2) and, when a fault condition is detected, a Schmitt trigger (15) wakes up a microprocessor (11) from a sleep mode. The microprocessor distinguishes which one of the fault current conditions has occurred on the power line (2), and a transceiver (3) transmits an alarm signal to a designated ground station. The device (1) can be remotely programmed to alter its trigger or threshold level or time delay to reset the device (1) when a fault has occurred. When normal current levels return, the device can be reset by itself or remotely from the ground station. The fault sensor device is powered by capacitors (8) which are charged by photovoltaic cells (7) or a current transformer (18).
摘要翻译：一种故障电流传感器装置（1），可以检测和区分交流电架空或地下电力传输或配电线路（2）上的异常电流事件，如瞬时停电，持续停电，正常过载和浪涌。感测装置（1）附接到电力线（2），并且当检测到故障条件时，施密特触发器（15）将微处理器（11）从睡眠模式唤醒。微处理器区分在电力线（2）上发生了哪一个故障电流条件，并且收发器（3）向指定的地面站发送报警信号。当发生故障时，可以将设备（1）远程编程为改变其触发或阈值电平或时间延迟以重置设备（1）。当正常电流水平返回时，可以通过自身或远离地面站来复位设备。故障传感器装置由电容器（8）供电，电容器（8）由光伏电池（7）或电流互感器（18）充电。

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