Electric Motor Voltage Unbalance and Amperage Unbalance worksheet. Unbalanced voltage measurement. Analyze unbalanced voltage and current. Voltage Unbalance Problems. Motor Voltage Unbalance Calculator. Calculate Motor Voltage Unbalance. Motor Voltage Unbalance Tolerance Calculator. How much voltage unbalance for motors. What is voltage unbalance.

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Unbalanced motor currents in 3 phase motors are always a concern.

Is the problem with the motor, the utility system, or both? How much unbalance is tolerable?

Voltage Unbalance Check Sheet
Problem	Solution
Blown fuse on power factor correction capacitor bank.	Locate and replace blown fuse
Uneven 1 phase load on 3 phase system.	Locate, and more evenly distribute 1 phase loads.
Unbalanced from the utility.	If serious unbalance exists, ask them to correct it.
Harmonic distortion.	Locate sources of harmonics, reduce or control the harmonics.