rewinding effects
rewinding effects
(OP)
hi friends
we have a ground fault in the synchronous generator 10 MW so we transfer it to specialized work shop for Re-winding, and after rewinding the generator and make alignment for the generator with the gear box shaft and start the generator we noticed very high vibration in the generator body ,so we make recheck for the alignment and found high deviation in reading occurred, is the generator rewinding effects on the magnetic center?? causing for the deviation in alighment
we have a ground fault in the synchronous generator 10 MW so we transfer it to specialized work shop for Re-winding, and after rewinding the generator and make alignment for the generator with the gear box shaft and start the generator we noticed very high vibration in the generator body ,so we make recheck for the alignment and found high deviation in reading occurred, is the generator rewinding effects on the magnetic center?? causing for the deviation in alighment





RE: rewinding effects
Muthu
www.edison.co.in
RE: rewinding effects
I don't understand this statement. Can you explain specifically what you mean by this?
Example:
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(2B)+(2B)' ?
RE: rewinding effects
John
RE: rewinding effects
2. the predominant frequency of vibration is 1X at 1500 RPM
3. The machine was found out of alignment after start the generator and stopping it for vibration checking.
4. we just correct the alignment and expected to make running test for generator tomorrow.
5. the rewinding included 100% of stator winding.
why the alignment change from and after generator running ??
in case of misalignment occurred again or we noticed any vibration , any suggestion is respected
RE: rewinding effects
Bill
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"Why not the best?"
Jimmy Carter
RE: rewinding effects
We can lean away / rule out imbalance due to a rotor rewind.
RE: rewinding effects