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    • 7. 发明授权
    • Fault point location system
    • 故障点定位系统
    • US06597180B1
    • 2003-07-22
    • US09438289
    • 1999-11-12
    • Motokuni TakaokaMasanori Sugiura
    • Motokuni TakaokaMasanori Sugiura
    • G01R3108
    • G01R31/088G01R31/085
    • A fault point location system comprises substation 1 installed along transmission and distribution line (TD line) to send a surge detection time (SD time), and master station 2 locates fault points based on the information. Substation 1 stores and updates past voltage or current waveforms of the TD line, stores a surge recognition level L2 (higher than a noise level), and a surge waveform starting level L1 (set lower than level L2), determines as the SD time, in the case where the voltage or current of the TD line exceeds level L2, the time at which the voltage or current first exceeded level L1 after going back through the waveforms stored from the time at which the surge recognition level was exceeded, and sends the SD time to master station 2 via the communication network.
    • 故障点定位系统包括沿传输和配线(TD线)安装的变电站1,发送浪涌检测时间(SD时间),主站2根据信息定位故障点。 变电站1存储和更新TD线的过去电压或电流波形,存储浪涌识别电平L2(高于噪声电平)和浪涌波形开始电平L1(设置为低于电平L2),确定为SD时间, 在TD线的电压或电流超过电平L2的情况下,在超过从超过浪涌识别电平的时刻开始存储的波形之后,电压或电流首先超过电平L1的时间,并发送 SD通过通信网络到主站2的时间。