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鞠和曹15515622381 ______ 过载保护器要和断路器(空气开关)配合使用,装在空气开关后面.空气开关起短路保护的作用.
邰周萍4771过压保护电路 -
鞠和曹15515622381 ______ 电路过电流过电压保护(circuit overcurrent/overvoltage protection)为防止主回路短路或直流牵引电动机发生环火造成主回路电流过大而损坏同步牵引发电机、主整流柜等电气设备,机车在牵引、电阻制动或自负载工况下,对主电路的过电流和...
邰周萍4771请问电流过载保护器怎么接?谢谢 -
鞠和曹15515622381 ______ 电流过载保护器也叫热保护器,是利用电的发热原理来工作的,根据设备的额定电流选择,一般为1.1-1.5倍,但电动机还要考虑启动电流和保护器的动作时间.
邰周萍4771具有过载保护的自锁正转控制线路接线图 -
鞠和曹15515622381 ______ FR是热继电器.有两个接点接(串)在自锁回路里.下图供 你参考;