黑龙江快乐十分

温州皖开电力设备有限公司

点击次数:698 发布时间:2017-05-22

皖开ZW7-40.5型户外真空断路器的安装维护

ZW7-40.5真空断路器的维护工作
对高压真空断路器应该每年进行一次停电检查维护,以保证正常运行。检查应做好如下方面的工作:
1对管子进行断口工频耐压测试,测试真空度并记录在册。
2对绝缘件进行工频耐压试验。
3测试断路器的开距、接触行程和机械特性,并记录在册。
4对各连接件的可调整处的连接螺栓、螺母等应检查是否有松动,特别是辅助开关拐臂处的连接小螺钉,真空管动导电杆连接的锁紧螺母等。
5对各转动关节处应检查各种卡簧,销子等是否松脱;并对各转动、滑动部分加润滑油膏。
6对使用在电流大于1250A以上的真空断路器,应对每极作直流电阻测试并记录在册。
7如需更换管子应按产品说明书的要求进行,更换后应进行机械特性的测试和耐压8年检后和投运前应连续空载操作8~10次,一切正常方可投运.平均合闸速度
平均合闸速度主要影响触头的电磨蚀。如合闸速度太低,则预击穿时间长,电弧存在的时间长,触头表面电磨损大,甚至使触头熔焊而粘住,降低灭弧室的电寿命。但速度太高,容易产生合闸弹跳,操动机构输出功也要增大,对灭弧室和整机机械冲击大,影响产品的使用可靠性与机械寿命。平均合闸速度通常取0.6m/s左右为宜。

皖开ZW7-40.5型户外真空断路器的安装维护

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