Unbalance Current in 3 Phase System

Unbalanced systems‎

It goes wherever the neutral goes, which ordinarily is the star (wye) point of the transformer.

correct but what happens to the unbalance cuurent at the tansformer star point?

It distributes itself into the windings and goes around again.

thanks for the reply. but the unbalance current can still be distributed at the load side instead of returning back to the source. Hence why there is a neutral conductor returning to the source. what i understand is that if the neutral conductor is not provided at the load side the unbalance current will flow from one phase to the other phases causing distortion in terms of voltage drop across and increase in current magnitude inthe phases. Thats is why the unbalance current gets passed to source via the neutral conductor.

You are completely confused.

If I understand your question well,there are two Different cases:

first case if this unbalance caused by open in one phase and another two phases are loaded then the current in one phase will flow in other phase and there is no zero sequence component to flow in the neutral

but if unbalance caused by phase to phase to earth, here zero seq. component will appear and you need neutral pass to source

May be you must draw us a picture and show were is the neutral conductor

greetings

sorry this is not what im asking for

If you are familiar with "phasor diagrams", you can draw a triangular outer diagram with a neutral anywhere within that triangle. When you connect up all the lines, the electrical phase angles will match the geometric angles in the diagram, and the voltages/currents will match the lengths of the lines.

Nonsense.

check this please

Electrical Unbalance and overloads