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For AC motor experts - -

R

rlinger

Joined
Mar 29, 2002
Messages
4,591
My Pop gave me a motor he thought he had bought new back in the seventies and had not used. It is a Westinghouse on its label and the box it came in says Dayton. I would like to use this 1725 RPM motor for a buffer.

The label is 115 V. 1 phase. The box says split phase, 60 Hz., single phase. It seems this is a brushless motor from all I can see. There are only two power connections to the motor, L1 and L2. Also, the label has Type A and on another area of the label has Type FH. Sorry, I'm just not much of a AC motor guy.

The problem: I have to help it start by spinning the the shaft. It appears to run at full RPM but runs hot and gets hot very quickly with no load applied to the motor. It has a thermal shutoff built in and shuts down after about 10 min.. The inside, from what I can see without tearing down the motor, seems clean and the bearings have no play and spins very easily by hand.

I wonder if I need a external capacitor to run this motor properly.
Can anyone knowing better than I advise me if I may be correct or not. The documentation that came in the box helps me not at all.

Thanks; Roger
 
You might want to look up electrical supplies wholesale in the ph., book, and see if there is a Westinghouse electrical supply company nearby. Or even another one that handles Westinghouse motors. They could tell you for sure what it is. They will need the part number, stamped on the label.
Westinghouse makes excellent motors, and is one of, if not the first manufacturer of electric motors in the country.
All the AC motors that I use, have externally mounted capacitors on them for high torque start.
 
from at first it sounds like you have it wired wrong...........]

HOWEVER, my friend used to run an electrical supply house that sold motors and when he comes over and we go under my house where I have piles and piles of junk, he sees the few motors I have stored there and tells me to spin them every chance I can..........that sitting in one place will cause them to get a set from the magnet and screw up the motor..........SO..........if it sat in one place for that long that might be the problem.
 
I finally decided to disassemble the motor and found the answer to a mystery. One of the windings had been burned. Its a wonder it ran at all and suprising it kicked no breaker. Its out of here.

Thanks anyhow.

Roger
 
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