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J4Baggers
Mar 20, 2012, 03:31 AM
My 250kva generator is earth however there is now smoke coming from the pit that the generator is earthed

tkrussell
Mar 20, 2012, 04:14 AM
Using an clamp on amp meter , measure the ground wire connecting to the rod, to determine if any current is flowing.

That will need to be corrected.

Could be a poor soil condition causing the ground resitance to be too high, still should not have high amps flowing to ground thou.

There is a clamp on ground rod resistance instrument available to measure the resistance of the rod.

hfcarson
Mar 20, 2012, 06:32 AM
J4, along with the recommendations of TK, you should be carefully reviewing the
Grounding and if the neutral to ground connections are correct. If this is not a separately
Derived system, the neutral should not be bonded to the ground. This may have something to do
With the "hot" ground rod if installed incorrectly.