NEUTRAL CURRENTS IN 3 PHASE SYSTEMS – WHERE DO THEY GO TO – WHY ARE THEY DIFFERENT TO SINGLE PHASE?

At LearnElectrics we have often been asked about neutral currents in three phase systems and how they appear to differ from single phase systems.

Examples of questions have included …
In a balanced 3 phase system, why are there no neutral currents
If we have a neutral current in a single phase installation, then where has it gone in a three phase system
If there is no neutral current then how do things work?
And we will also introduce Kirchoff’s Law to show what is happening and how we can use this to show how balanced a system might be, what will happen if we add a piece of equipment onto the system.

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This is video No.174 on our YouTube channel where we have videos on a wide range of electrical topics.