[oil pan 4]

I partially power factor corrected my .44pf oilless air compressor for my friend. Its a compact little rig, there is only room for one capacitor. Knowing how bad the power factor is I know it will need way over 100uf to give it an ideal power factor correction.
I warmed up the compressor for a couple minutes and did a baseline, compressor shut off at 16 amps.
I added an 80uf capacitor to the circuit (just to help quantify added capacitance to amp reduction), that dropped amps to 13.8 at shut off.
Then removed the 80uf cap and put a 100uf capacitor into the circuit. That dropped the amps at shut off to 13.30amps.
That brought the pf from .44 up to .60pf and should keep this machine from tripping a 15 amp breaker when used on hot days for extended runs or when on an extension cord.
Good enough I guess...

Now some one made me an offer for my 3 power factor capacitors, so I will pull the 2 I put in my welder and go back to motor run capacitors.