unbalanced loading

t_n_k

Joined Mar 6, 2009
5,447
what are the potential problems of unbalanced loading of three phase circuits
Do you mean under normal loading or fault conditions? You might need to be a bit more specific in your question.

For instance - In a typical 3-phase + neutral supply at the connection point, the installer will try to balance the loads evenly across the phases. The more complex the installation the more difficult this might become - particularly if loads with sizable power factor issues are present in the mix. The neutral conductor is usually sized to allow for a significant imbalance across the phases.
 
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