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In an existing 3phase distribution panel, with only single phase loads (L-N) and (L-L), what is the best way to calculate that the loads are balanced?

In the NEC code, I don't find any reference to "derating factor of 3 phase cables" when bundled / stacked together either underground (directly buried) or above ground thru cable trays? Need some suggestions on this.

What is the advantage of reactive power (VAR)? How it is controlled from the power plants? Is it possible to transmit real power (KW) wihtout KVAR?

We are operating a used oil re-refining plant to produce lube base oils. The process involves distillation in vacuum operated columns. We are experiencing following operating problems: 1. Coking in direct fired heater tubes. We have tried chemical cleaning, pigging, etc but no results. 2. Colum...

In a 3-ph system with neutral not solidly grounded, why the phase voltage of unfaulted lines gets increased 1.732 times its nominal voltage in the event of a L-G fault. Mathematically, it is clear but what actually is happening in reality?

We are operating a Used Oil Lube refinery which generates water with very high CoD and TOC. We are using bioreactor process to treat the water but still the treated water gets high COD / BOD and cannot be discharged to local regulatory discharge network. Any suggestions to tackle this problem...