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How to run 3-phase motor with single phase power supply
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ATO single-phase to 3-phase VFD power has 1/2hp, 1hp, 2hp, 3hp, 5hp, 7.5hp, 10hp, 15hp, 20hp. Single-phase 220V/240V power supply is enough.
Principle: Connect a capacitor, and use capacitor or inductance phase shift method for one phase winding coil, so that two phases pass different currents, so that a rotating magnetic field can be established to start the motor, which is equivalent to a three-phase asynchronous motor Modified into a single-phase asynchronous motor.
Disadvantages: suitable for low-power three-phase motors (less than 1.5kW), the motor power is reduced to 2/3 of the original after the modification.
A better way than this is to use a VFD to drive a three-phase motor.
Principle: Connect a capacitor, and use capacitor or inductance phase shift method for one phase winding coil, so that two phases pass different currents, so that a rotating magnetic field can be established to start the motor, which is equivalent to a three-phase asynchronous motor Modified into a single-phase asynchronous motor.
Disadvantages: suitable for low-power three-phase motors (less than 1.5kW), the motor power is reduced to 2/3 of the original after the modification.
A better way than this is to use a VFD to drive a three-phase motor.
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