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Motor underloading energy saver circuit diagram 2

2016-09-03 08:23  
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Motor underloading energy saver circuit diagram 2
The motor underloading energy saver circuit is composed of the power supply circuit, power transformer T, voltage adjustment tube V3, voltage regulator diode VS, rectifier diode VD2, resistor R4 and filter capacitors C1 and C2 and so on. Current sampling detection circuit is composed of the current transformer TA, diode VD1, potentiometer RP, resistors R1 and R2, capacitor C4 and so on. Control circuit consists of the power switch Q, stop button S1, start button S2, transistors V1 and V2, relay K, time relay KT, AC contactors KM1 and KM2 and so on. R1 ~ R4 select 1/4W carbon film resistors. RP uses small potentiometer or variable resistor. C1 uses aluminium electrolytic capacitors with the voltage in 50V.