Powering My AC Motor

Before wiring it up and trying it please wait until someone has answered you with hopefully the correct answer as I'm not sure enough to guess and let you take the risk.

John.

Call your local dryer repairman and ask them what the wires go to. Thats the safe way. USA is different i'm sure (where i live)/ OR get your voltmeter out and check the wiring on a similar motor on a working dryer.

A motor clamped tightly into a vise is not going anywhere (at least not a tumbler dryer motor).

These motors are fed from a single phase. To set a turning direction, they use a phase shifting capacitor for a second coil, offset, usually 90 degrees from the first. So, you have two independent coils, and the direction of turning is dependent to which wires which end the capacitor is connected.

Most such motors do not tolerate current in the capacitor leg, so they are limited by a relay to how long that current can flow. That is standard.

Either Relay, or centrifugal switch on the Armature, when it speeds up, you hear the "Click"

I myself, would look at the plate on the motor and write down the Model number, Manufacturer and any other pertinent info. Then I would do a google search using the brand and model number. Most often this will turn up more information than you could possibly hope for. If that doesn't provide the required info. Search through the manufacturers website. That will often provide sufficient information. Sometimes you can get a wiring diagram of the dryer. Before you connect it to live mains make sure you have obtained sufficient data to do so safely.

Good luck

What do you want to do with this motor, that can have a bearing on how it gets connected, or if its the right animal for the job....

hook it to a house outlet with a 15 amp or less circuit breaker. If it is wrong it will only trip the circuit breaker.change the wires , if it trips the breaker again ... throw it away

That, I think, must be the most ill advised post I've ever read!

Assuming it didn't trip the breaker, or blow fuses around the house etc... Would you then tell the questioner to use it, although it may be running way out of specification and cause a fire???

John.

Hi Jay,

Did the motor name plate actually say 220 Vac or are you assuming this because the dryer was 220volt? Whirlpool and Kenmore dryers in the USA are 220 volt but the dryer motors are 110 volt. I don't know where you are located but I just wanted you to be warned.

50 HZ is what he said.. so that probably means europe (not usa , as usa is 60hz).

Thus it probably is 220volts.

FYI: A motor should have some small resistance thru the coil wires @ 1 to 5 ohms typcially for usa type motors. Hope that helps.