All About Power Calculations: single-phase, 3-phase, balanced and unbalanced.
The single most common mistake even the most experienced electricians make is calculating current draw and knowing when to use the single-phase formula or the 3-phase formula. And the 3-phase formula only works with balanced 3-phase systems. How do we deal with unbalanced 3-phase systems, which is the vast majority of real world situations?
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