Voltages are rarely perfectly balanced in three-phase systems.
Although small unbalances are not usually a problem, if this unbalance becomes too great then the unbalance can cause problems especially for three-phase motors or compressors.
Fortunately unbalance is easy to measure with PMI three-phase Boomerangs and Revolutions with Canvass.
Canvass provides the tools to help identify and locate the source of voltage unbalance problems.
Voltage unbalance in a three-phase system can be defined as the max deviation from the 3-phase average divided by the average.
Voltage unbalance is usually caused by single-phase and non-linear loads that are not evenly distributed.
Sources of voltage unbalance are usually found inside of facilities...
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