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Start by
Seyed Amin Golestaneh
01-01-2014 01:59 AM

Why motor rewinding reduce motor's efficiency?

As you know, motor rewinding will reduce motor's efficiency from %10 up to %15. Despite of that, efficiency may improve up to 5% reduction after some time working.
Now, my question is that,
1-why this reduction happen?
2- why this improvement happen?