Last month, we saw how you can use vectors to define complex circuits and determine current. This month, we'll show you how to use vector diagrams and some simple math to calculate neutral currents in ...

All 3 phases are equally dangerous to touch! If there is a ground wire, that is (ideally) safe to touch, but there is no neutral wire in a 3 phase system. All 3 wires are equally "hot". Edit: Although ...

A 3-phase energy meter can interface with different services like 3-phase 4-wire, 3-phase 3-wire, and 3-phase 4-wire with 2½ elements. It can also provide active, reactive, and apparent energy ...

When designing ground-fault protection (GFP) for a power distribution system, you should always consider the nature of the power source. If the power source is from a separately derived system, you ...