Can you Identify this electric motor
Can you Identify this electric motor
(OP)
Hello, Can anyone give me more information about this motor? It's an ac motor 3phase, with low rpm (about 100rpm under load ) ..I'm under the impression there is no gear box, so how would it be possible for an ac motor to reach such low rpm and enough torque to manage the load?
What type of motor is this?
Any well known manufacturers that use this design?
Thank you!





RE: Can you Identify this electric motor
Is it running?
Lots of poles means lower speed.
Bill
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"Why not the best?"
Jimmy Carter
RE: Can you Identify this electric motor
Perhaps the box on top of the unit is its drive, and it has something more like
6 or 8 poles in the frame.
I'm with Bill, let's see a name plate.
An interesting piece of equipment, if it is indeed a motor.
John
RE: Can you Identify this electric motor
The shell would not be useful around a brake, since it's not optimized for heat dissipation.
It would be ok for a low-duty clutch, but I don't see two shafts.
Maybe explostion proof?
Mike Halloran
Pembroke Pines, FL, USA
RE: Can you Identify this electric motor
With the fins on the top box, I too would suspect that is a speed controller of some kind.
RE: Can you Identify this electric motor
The motor is about 15" diameter.
The box on top looks like some kind of drive, or maybe a cooling mechanism?
This motor is replacing what we would normally use 1.5hp 4 poles with a gearbox 1:17 gear ratio.
RE: Can you Identify this electric motor
Gunnar Englund
www.gke.org
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Half full - Half empty? I don't mind. It's what in it that counts.
RE: Can you Identify this electric motor
RE: Can you Identify this electric motor
The fins on the control box are not big enough to dissipate a lot of heat, but modern controls don't need to dissipate much, so a kW or two of output is not impossible.
There's room for a planetary gearbox and a pancake/PM motor in that big shell.
I sent a link to the image and a link to the discussion to Grainger.
They haven't seen anything like it, either.
Mike Halloran
Pembroke Pines, FL, USA
RE: Can you Identify this electric motor
Mike Halloran
Pembroke Pines, FL, USA
RE: Can you Identify this electric motor
Could also be a brake.
Looks as though just one end comes off.
RE: Can you Identify this electric motor
Muthu
www.edison.co.in
RE: Can you Identify this electric motor
It's currently being used on fish farms, but I doubt it was designed for this. I've also been told that it's 30-40% more efficient than the tefc + gearbox solution that it's replacing.
It does not make any weird noises when running
Why would you think it's a clutch or brake?
RE: Can you Identify this electric motor
Also I made a mistake. At first I mistakenly thought that the frame extension behind the motor was a shaft extending from the back side of the device.
My bad.
Bill
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"Why not the best?"
Jimmy Carter
RE: Can you Identify this electric motor
Number of poles is depending on Hz applied.
Winding Design and Motor Repair
RE: Can you Identify this electric motor
Muthu
www.edison.co.in
RE: Can you Identify this electric motor
That resembles a Pancake motor design. We had similar smaller units on our printer rollers.
https://www.heinzmann.com/en/electric-motors/panca...
Chuck
RE: Can you Identify this electric motor
Sometimes they are 3-phase, sometimes multiple phases ( 7 phases for washing machines).
More at:
http://winding.wixsite.com/design/single-post/2016/11/26/3ph-Windings-for-PM-motors