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tuo la ji dian qi xi tong duan lu bao hu zhuang zhi
Author(s): 
Pages: 28
Year: Issue:  5
Journal: Farm Machinery

Keyword:  短路保护限流器蓄电池正极发电机调节器接线方法电路原理机电系电气系统用电设备光信号;
Abstract: <正>本装置,系用一只12V、18A 发电机调节器(即三联调节器)改装而成。使用时,当拖拉机电系线路发生短路或超负荷,即自动切断电源,同时发出声、光信号。线路恢复正常后,短路保护装置自行复位。电路原理和接线方法见图。电流由蓄电池正极→用电设备→开关 K→限流器触点 ch2→限流器线圈 Q2→调压器触点 ch1→电流表A→蓄电池负极。在正常的情况下,由于触点 ch1和 ch2闭合,同时线圈 Q2的电阻很小,即相当于将12V 蜂鸣器和线圈
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