If the motor rotates opposite to the desired direction, swapping any two of the three power supply wires will correct it. This step prevents damage to driven equipment.
Measure 3 Phase Motor Coil Resistance Correctly with a Multimeter
Measure the resistance between U and V. Measure the resistance between V and W.
If continuity is present, there is a wiring fault or a failed insulation barrier, and the motor must not be energized. This procedure allows for the verification of winding integrity, phase balance, and the identification of common faults before they lead to catastrophic failure.
Measure 3 Phase Motor Coil Resistance with a Multimeter
Verifying Disconnection Use the continuity function of your multimeter to confirm that the motor is completely disconnected from the supply. Set the multimeter to measure resistance and place one probe on a clean, unpainted metal surface on the motor housing.
More About How to check 3 phase motor with multimeter
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