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Old 03-20-17, 08:46 PM   #29
oil pan 4
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Join Date: Nov 2012
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I took the 2hp motor put in a smaller start capacitor, with some testing I found the smaller capacitor starting amps trending slightly lower and we're being more consistent.
I also took my big 8 amp 25 ohm rheostat and hooked it up to my resistor start test rig in place of one of the 5 ohm resistors. Found that this motor likes closer to 15 ohms of start resistance.
This lowered staring amps to a consistent 8 amps on the unloaded motor.
Energising the magnetic clutch to the motor running at full speed only peaks at 7 amps.
Tested the pneumatic unloader it drops running amps to 4.5
Full load shut off is at 7.5 amps. With a .96 powerfactor.
Going from 45 inrush amps down to 8 is pretty darn impressive.

Last edited by oil pan 4; 03-20-17 at 09:21 PM..
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