Article 2.0.2C : Why neutral current is high in some meters?

This situation will occur due to unbalanced PF and harmonics,

For idle calculation, let us assume the current is 50A and all phases operate at 0.5Lg.

So the calculation will be (50 * cos 60) + (50 * cos 180) + (50 * cos 300) = 25 - 50 + 25 = 0.

We can calculate by same method.

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