Looking for defective (true!!) run motor

[freiburg]

Yes, it's really what I am looking for. Has anybody a defective run motor for me?

Here's the reason I am looking for one:

I have a 230V 50 Hz run motor with an open coil in an RT2 organ. It is nearly impossible to find 50Hz stuff (Run motors, scanners, generators) if you need them.
So I want to open it an rewind the coil (or let the coil be rewound by some motor specialists if I fail...)

I don't want to practice on this super rare 50 Hz motor, so I am looking for a defective 60 Hz motor.

If you can help me, please send me a PM.

Thank you!!

Christian

[Jyvoipabo]

Yes, it's really what I am looking for. Has anybody a defective run motor for me?

Here's the reason I am looking for one:

I have a 230V 50 Hz run motor with an open coil in an RT2 organ. It is nearly impossible to find 50Hz stuff (Run motors, scanners, generators) if you need them.
So I want to open it an rewind the coil (or let the coil be rewound by some motor specialists if I fail...)

I don't want to practice on this super rare 50 Hz motor, so I am looking for a defective 60 Hz motor.

If you can help me, please send me a PM.

Thank you!!

Christian

Bonsoir Christian.

It is still rare to have a cut wire in a motor.

A burnt coil is usually found.
This is reflected in the very strong and characteristic odor > motor = KO.

If the engine does not have that characteristic odor > motor = ?
You have to perform an autopsy to try and find out what happened.

Christian[/QUOTE]

[enor]

Also, rewinding a 60Hz motor will probably be a different experience compared to a 50Hz one, since the number of poles is different (and thus also the design thereof)

[freiburg]

Also, rewinding a 60Hz motor will probably be a different experience compared to a 50Hz one, since the number of poles is different (and thus also the design thereof)

Yes, I know, but if you can do the one you also can do the other......

- - - Updated - - -

A burnt coil is usually found.
This is reflected in the very strong and characteristic odor > motor = KO.

If the engine does not have that characteristic odor > motor = ?
You have to perform an autopsy to try and find out what happened.

No special smell. anyway one coil opened up the other one works. thus the motor does not lock to the correct speed.

Christian

[freiburg]

still interested in defective run motors.....

[UncleClark]

I"d probably just rewind your existing motor. Since it's failed there's really nothing to loose by just performing an autopsy. Make sure you count the turns and then measure the diameter of the wire with a micrometer or wire gauge.

[Wes]

You might PM BlueOliveB3.

[nonreverb]

I have one...came out of a '65 B3. Although I don't know what the shipping on something like that would be.

[enor]

I have a 230/50 run motor out of a BC. It's not defective though, and from what I hear the early motors seem to be starting to fail more often ... so I'm going to want a decent price for it. It's in Europe though!

[Wes]

While we're on the topic, can anybody tell me how to differentiate start and run motor components for 50Hz operation?

I have a box with parts from several sets of motors. One set of motors was a from a south-african A100. If I can identify all the right parts, and figure out how to mount the missing starter gear on my 1500 RPM generator (would sacrifice an M3 genny?), I will assemble a CV generator and motor set for sale at a reasonable price. I don't have a scanner, unfortunately.

Or maybe I would be smarter to sell the genny bare - it could be driven from a self-starting motor as-is.

[Jyvoipabo]

I'm not sure but i think :
In 60 Hz organs, the motor turns at 1200 RPM / 60Hz or 20 revolutions per second. This is a 3 poles motor
In 50 Hz organs, the motor turns at 1500 RPM / 50Hz or 25 revolutions per second. This is a 2 poles motor and gear ratios are not the same.
J.P.

Sorry I had a 50Hz engine dismantled because the crimping of one of the bearings had been forgotten.
I forgot to take pictures.

[UncleClark]

I'm not sure but i think :
In 60 Hz organs, the motor turns at 1200 RPM / 60Hz or 20 revolutions per second. This is a 3 poles motor
In 50 Hz organs, the motor turns at 1500 RPM / 50Hz or 25 revolutions per second. This is a 2 poles motor and gear ratios are not the same.
J.P.

Sorry I had a 50Hz engine dismantled because the crimping of one of the bearings had been forgotten.
I forgot to take pictures.

No,
A 60 Hz synchronous motor running at 1200 RPM would have 6 poles.
A 50 Hz synchronous motor running at 1500 RPM would have 4 poles.

I don't know of any motor that has 3 poles, that's not an even number.

[johnny b3]

I've posted this before but here is an inside shot of a 60hz motor. The coils slide onto the 'arms' inside the laminated frame.

[Wes]

Thanks, Adam. I think I have one with a four-pointed "star" also. :D That must be the 50Hz motor.

Any clues for the start motor?

Wes

[UncleClark]

I've posted this before but here is an inside shot of a 60hz motor. The coils slide onto the 'arms' inside the laminated frame.

Yes and notice the rotor has 6 poles.:-)