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Motor protector 12

2016-09-03 16:09  
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Motor protector 12
This motor protector circuit is composed of power supply circuit, voltage detection control circuit, it is shown in the figure 8-48. The power supply circuit is made of power transformer T, rectifier diode VD3 and filter capacitor C3. The voltage detection control circuit consists of potentiometer RP, diode VD1, VD2, capacitors C1, C2, steady voltage diode VS, resistor R, transistors V1, V2 and relay K. In the motor control circuit, KM is the AC contactor , S1, S2 are the stop button and starter button.