- posted
12 years ago
I have a 7.5 HP TEFC Motor on a hot high pressure washer. My 3 phase
power is generated from a rotary converter. This motor is not happy
with my home made power and trips the heaters. Normal load is about 9
Amps under load but the one leg pulls 13-14A and trips the heaters.
The contactor is a small GE unit with integral heaters and I have them
set on max which is 14A IIRC.
The motor checks out just fine at the local motor shop. Coil
resistances are all equal. There are no excessive mechanical loads on
the motor. I have narrowed it to the current overload on one leg
only.
I'll test with an added load on the RPC to see if that helps, but in
the mean time; can I use a capacitor to adjust the current draw on
that leg down? If so what MF values? I think that the caps in my
surplus are all 600V rated.
Thanks,
Bob.