Answer / vitthal upare

Its depends upon healthyness of earthing and nuetral. for
good earthing there should be minimum voltage drop between
earth and nuetral.
So from above example its clear that neutral or earthing of
Transformer not proper. It can be check by earth tester

Answer / sridhar

loose connection in Earth Bus must be checked , Often
Earthing is neglected

Answer / pillay

If your intake is small and direct from the electric board
than it is normal ,that means the neutral of the power
supply board is is not so good, but when you transfer to DG
the neutral and earth which is within your control is
better earthed. If your intake is HT and through a
transformer than likely your transformer neutral earthing
or the neutral route is in question.

sir what is the purpose of SF6 in HT breaker and what is the pressure should be maintain in the breaker?

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