Re: [EVGRAY] help!

Body

Hi Luca
Whenever I dismantle a motor for RV,  I mark exactly how the end plates bolding tbe bearings are at,  first before removing them.
It's easy to put them back 90 orv180 degrees different as they should be and if I do tbis, sometimes the rotor might scrape s bit or it just spins very poorly.
Yours ould of been poorly manufactured easily.
I am thinking perhaps there is .25mm aigap at top of rotor between stator cores, and maybe 3mm gap below as extreme exame.
or one en of rotor sits much higher than other emd.....if so with aluminum alloy rotor being so close, eddy currents can create the heat you find.
Also check the impedance of the three phases too they should be same.
Try using different phases of the motor as run cap phase try reversing spin of rotor by running phases opposite I think 6 combinations possible?
Also bring the power input down to 85v see if any heat there, then bring up voltage until you find some.
Maybe your rotor made  of very inferior alloy contains too much iron.
Kone