Motor protector 1

Published:2011/6/27 4:44:00 Author:Nicole | Keyword: Motor, protector | From:SeekIC

The power supply circuit is composed of capacitors C1, C2, resistors R1-R3, rectifier diodes VD1-VD4, Zener diode VS1 and power supply indication LED VL. The current detection circuit is made of current transformer TAl-TA3, resistors R5-R11, R14-R16, diodes VD5-VD7, Zener diode VS2-VS4, potentiometer RP, capacitors C3-C7. The protection control circuit consists of operation amplifier integrated circuit IC(N1-N4), resistors R4, R12, R13, diodes VD8-VDl4, transistor V, relay K, AC contactor KM and starting button S1, stopping button S2.



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