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    • 2. 发明专利
    • Reclosing system of transmission line
    • 传输线接收系统
    • JP2010074952A
    • 2010-04-02
    • JP2008239680
    • 2008-09-18
    • Toshiba Corp株式会社東芝
    • IINUMA SHIGEOHORI MASAOSHINJO SATOSHI
    • H02H3/06
    • H02H3/066H02H3/40
    • PROBLEM TO BE SOLVED: To provide a method of detecting the extinction timing of arc ion of a faulty phase easily without requiring accuracy of detecting a line voltage so much, and to provide a reclosing system of a transmission line which prevents an occurrence of a failure on reclosing. SOLUTION: This reclosing system of a transmission line is structured to perform high speed reclosing by a protective relay RY provided with a protective calculation function section Pro, which breaks a faulty phase of the transmission line, and a reclosing function section Rec, which outputs a reclosing command to a circuit breaker of its own terminal when reclosing conditions are prepared in the interrupted faulty phase by inputting a voltage signal V L and a current signal I detected at each terminal of the transmission line TL to perform a prescribed protective calculation. In this reclosing system, a closing command is sent out to a faulty phase circuit breaker when a line voltage value V L of the faulty phase after interruption by a fault detected at its own terminal is present in the permissible range (¾¾V L ¾-¾Vk¾¾ COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:提供一种易于检测故障相的电弧离子的消光定时的方法,而不需要如此多地检测线电压的精度,并且提供防止发生的传输线的重合闸系统 重合闸失败。 解决方案:传输线路的这种重合闸系统被构造成通过设有保护计算功能部分Pro的保护继电器RY执行高速重合闸,该保护继电器RY断开传输线的故障相位,以及重合闸功能部分Rec, 当通过输入电压信号V SB和在传输线的每个端子处检测到的电流信号I而在断续故障阶段中准备重合闸条件时,其向自己的终端的断路器输出重合闸命令 TL执行规定的保护计算。 在该重合闸系统中,当在其自身端子处检测到的故障中断之后的故障相位的线路电压值V L 存在于允许的故障相位断路器中时,闭合指令被发送到故障相断路器 在故障相位打开时由线电压值Vk确定的范围(¾¾V<¾>¾¾-¾Vk¾¾k1)。 版权所有(C)2010,JPO&INPIT