Generator Coil Clearance
Generator Coil Clearance
(OP)
Is there a general rule for the clearance between coils in a LV machine? Would the clearance be drastically different between a 8kV machine and a 15kV machine. Are touching coils acceptable? If the clearance is small should the gap be filled to stop corona?






RE: Generator Coil Clearance
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RE: Generator Coil Clearance
RE: Generator Coil Clearance
RE: Generator Coil Clearance
I am talking about a 30MW hydro generator so the diameter is large and the MW is relatively low. I'm mostly concerned about coils that are touching. Do you think it is acceptable to have line end or any coils touching.
QCE
RE: Generator Coil Clearance
Is this an original winding or a rewind job ?
RE: Generator Coil Clearance
RE: Generator Coil Clearance
Can you post some pictures of your winding here ? Other day I saw in some post, pictures being uploaded in this forum. I haven't a clue how they were done.
If the series joints or take of leads are touching, then a good winder can form them properly to create some space. He can insert some insulation blocks and tie them to the joints to keep them separated.
RE: Generator Coil Clearance
RE: Generator Coil Clearance