Buying a used generator-What to do so you don't get burned!?

[brianakell]

Find a better setup for slightly more. My onan is 110. 220 single and 3 phase diesel mil surplus 3kw. You can find em for under $1k

Had a 110/220 single Honda 5kw gas for $650 before the onan

Correct me if Im wrong.

3kw, in 220/3phase, and typical electric motor, say 3hp, wouldnt this only yield about 12 amps to the motor?

[rocktot]

I need about 22 amps. The 4.0 and 5.0 are rated like 33amps and 40 something amps. Would I be safe at 9500 ft is the question with a 4.0?

[rocktot]

Ok, is it possible to use a rheostat to lower the starting watts on power tools????I've used one with a hand drill. I guess I could get a Kill a Watt meter and see what happens.

[SideShow Bob]

A rheostat varies voltage. In resistive loads (incandescent lamps, space heaters.....) lower voltage = lower current.
However in motors (power tools), a lower voltage = higher current to maintain its rated load.

[electronman1729]

Correct me if Im wrong.

3kw, in 220/3phase, and typical electric motor, say 3hp, wouldnt this only yield about 12 amps to the motor?

a 3hp motor rated a 230VAC will yield about 9.6 amps. since you are talking 3phase you will need to divide by square root of 3 and divide by .8 for power factor and .8 for efficiency

[rocktot]

How about using oxygen in the carb at high altitude 9500ft to get a 4.0 to be able to run a 16 amp motor?

[jerrymrc]

How about using oxygen in the carb at high altitude 9500ft to get a 4.0 to be able to run a 16 amp motor?

Ya might want to do a little search on adding 02 to the intake. Not a wise idea. There is a reason why N20 is used in a controlled manner.