Motor protector 14

Published:2011/6/27 21:39:00 Author:Nicole | Keyword: Motor, protector | From:SeekIC

This motor protector circuit is composed of power supply circuit and phase failure detection protection circuit, it is shown in the figure 8-50. The power supply circuit is made of power transformer T, rectifier diode VD3, fliter capacitor C2, current limiting resistor R4 and LED VL. The phase failure detection protection circuit consists of resistors R1-R3, capacitor C1, diodes VD1, VD2, potentiometer RP, transistors V1, V2 and relay K. The phase failure protection circuit's sensitivity can be changed by adjusting RP.



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