MV motor dropped
MV motor dropped
(OP)
hello
a MV 450hp 4.16kv motor was dropped at the client,
site. Both endshields were broken, sleeve bearings too.
Rotor and shaft look good.
Do you think that the motor shop could just replace the damaged parts, makes tests and the motor will run fine.?
I apologize if this is a trivial question, but I am just asking for opinions
rgds
a MV 450hp 4.16kv motor was dropped at the client,
site. Both endshields were broken, sleeve bearings too.
Rotor and shaft look good.
Do you think that the motor shop could just replace the damaged parts, makes tests and the motor will run fine.?
I apologize if this is a trivial question, but I am just asking for opinions
rgds





RE: MV motor dropped
Did the coils shift in the slots?
was there any change in the lamination stacking of either the rotor or the stator?
Was there any deflection of the shaft?
Hopefully someone has good insurance.
RE: MV motor dropped
RE: MV motor dropped
Gunnar Englund
www.gke.org
RE: MV motor dropped
Mike Halloran
Pembroke Pines, FL, USA
RE: MV motor dropped
Inspect stator for broken welds between core and frame.
Visual inspection of rotor.
Inspect end-turns for any signs of cracking (not likely).
Do core loss test for signs of core damage (not likely).
Check shaft T.I.R. Check airgap both static and dynamic after assembled.
Specify electrical tests. (megger, surge, hi-pot).
No-load run and check for normal vibrations, temperatures and currents.
Even with all the above tests, I'd still rather have a new one but you do what you can do.
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RE: MV motor dropped
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RE: MV motor dropped