Recent content by allroads

standard 15 amp breaker with 'code' wireing. plug is 10 ft from breaker.

no breaker pop on startup. Takes about 2-3 min, as PSI increases. No breaker pop at 20 psi.

Dont have access to the smaller motor yet. Here aer Two of the larger motors which both have really high amp draws. posted just above..

no extension cords. and im using the cord from when it was wired 220, so its high guage. I just put a new plug on the end. plug is closest plug to the breaker. Id estimate the plug is rougtly 10 ft from teh breaker. The panel is on the other side of the wall from the plug so i cant get much closer.

heres the plate. Old motor is dual voltage, and at 110, seems to be able to pull 19 amps per the plate. Dont know why. I put up a nother picture of a different motor i have. its a 2 HP, with similar specs. so why is this 1 hp pulling so many amps?

ya, thought of that. Since im no engineer, i was wondering if there was an easier way/equation. Even if the 19 amp motor draws exactly 15 with a 2.5 inch pulley, it will be spinning the compressor slower than stock (3 inch pulley). Was wondering if there was a way to get the same amount of...

yup. but will it be unable to turn that large a pulley the same, or does the double torque of the 1700 motor negate this problem.

right, sorry, Would be a 1700 rpm 15 amp with a 6 inch pulley to regain the orig speed. Is this ludicrous? ie, is 1700 rpm 15 amp and 6 inch pulley a good replacement option for a 3400 rpm 20 amp 3 inch pulley motor, or am i missing something fundamental, like a drop in ability to even TURN...

oops. I guess I was a bit off. To regain the speed of the 34xx/3 inch i would need a 17xx/6 inch pulley. But, basic question remains.

So, I could swap in either one and the compressor pump would not know the difference? reason being, the 3400 rpm motor i have is old and pulls 19 amps and blows the circuit with a 3 inch pulley, but not a 2 inch pulley. Can get a 1700 rpm motor that pulls 15 amps, and figure that should NOT...

Ya I would have done the same thing, but somewhere I read that a 1700 rpm motor has more inherant Torque even if HP is the same than an equiv electric motor at 3400. Just not sure if anyone "knew" for sure, and is it a linear relationship. Thanks though! Id guess too! Shorter pully is like...

has more torque?

how do I do that?

Well, ok. So with that, does that mean a 1hp at 1750 and 2 inch pulley has 2x the torque of a 1hp 3600 with 2 inch pulley? IE, doesnt the torque drop as the pulley size gets larger, regardless of the speed?

Ok. Another philosophical. scenario 1. 1 hp motor - 120 volt - 15 amp, 17xx rpm with a 4 inch pulley 2. 1 hp motor - 120 volt - 20 amp, 34xx rpm with a 2 inch pulley. Which has more torque ? I heard a 1700rpm motor starts with more torque, but would be reduced with the pulley? Would it be a...