Triconex DO3401
Triconex DO3401
Triconex DO3401
目前在10kV高压网络中应用较为广泛的是有源二合一故障指示器,其不仅能够指示相间短路故障,而且还能够检测单相接地故障,其安装应用主要如下所示:
(1)主机的安装。有源二合一故障指示器主机为95*50*85mm尺寸规格,存放主机的柜体的开孔规格为90(长)*45(宽)mm。主机的安装相对来说较为简单,只需要将主机上方的四个弹片按下即可放入到柜体中,即完成主机安装。
(2)接地传感器的安装。接地传感器是为了感应单相接地短路电流,因此该设备必须安装在各个分相的三芯电缆上,从而使得传感器能够接收并感应每一相的接地电流。接地传感器在安装时首先用螺丝刀拧开螺丝,打开金属卡环,然后将金属卡环套在各项三芯电缆上面,***后用螺丝刀拧紧固定,同时拉紧抱扎锁扣,将卡扣牢牢地固定在电缆上面,从而防止传感器脱落。图一为短路传感器安装示意图。
(3)短路传感器的安装。短路传感器是为了监测电缆相间是否存在着短路电流,因此短路传感器往往安装在单相电缆的分支之上,安装方法和步骤与接地传感器相似,首先用螺丝刀将螺丝钉拧开,从而打开金属卡环,然后将卡环套在电缆分支上,再次拧紧螺丝钉,如果仍然存在松动,则通过调节传感器顶端的螺杆来固定。
(4)光纤线缆的连接。当故障指示器的主机和传感器安装完毕之后,安装人员用光纤线缆将传感器与主机连接起来,这样传感器在电缆上接受到的电流信息就能过通过光纤输送至主机之中,从而根据电流的大小,主机判断是否进行***或闪灯动作。安装时将光纤线缆插入到主机的光纤线头之中,然后再旋紧光纤帽,使得光纤与主机紧密地连接在一起,从而杜绝因接触不良带来的信号中断事故。
总而言之,随着我国电力事业的不断发展,10kV高压电缆网络成为了电力输送的重要途径,电缆头作为线路连接的核心配件,其制作质量决定着供电网络安全运行。同时在线路上安装故障指示器能够在线路出现故障时快速地找到故障源,为工作人员开展及时进行抢修节约了宝贵的时间,进而保证了电力输送的持续稳定。
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