Author Topic: Video Winding a 3 Phase Motor  (Read 23640 times)

Offline Ivan

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Video Winding a 3 Phase Motor
« on: December 23, 2012, 01:19:36 PM »
Here is 4 videos of insulation and winding the first phase 4 poles.

I will be adding more videos of laying the coils, phase insulation, tieing and making up the connections.

Here is a video on cleaning up the stator and putting in the insulation.
<a href="http://www.youtube.com/v/u7EVWXq3Skk" target="_blank" class="new_win">http://www.youtube.com/v/u7EVWXq3Skk</a> 


This is the first Video 1st phase 2 poles.
<a href="http://www.youtube.com/v/wslYedGKcrE" target="_blank" class="new_win">http://www.youtube.com/v/wslYedGKcrE</a>





This is the second video 1st phase last 2 poles.


This is the second phase 1st two poles.


This is a video on doing the connections on my 10HP motor.


This video is, phase insulation and tieing the coils.
Mizs 20 hp motor.
<a href="http://www.youtube.com/v/nb5drcIVg28" target="_blank" class="new_win">http://www.youtube.com/v/nb5drcIVg28</a>


I will be adding more videos of laying the coils, phase insulation, tieing and making up the connections.
:co<:  If you bought just one or two extra can goods a week and donated to a food bank   Nobody would go hungry.

Offline Ivan

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Re: Video Winding My Motor
« Reply #1 on: December 23, 2012, 06:57:01 PM »
Here is the coil layout for first phase four poles, Mizs 20 hp motor. (This is now the old motor)

I pulled 12 wires off the roll 75 feet long.

12 inhand,  2 turns each coil,  18 gauge wire.
:co<:  If you bought just one or two extra can goods a week and donated to a food bank   Nobody would go hungry.

Offline Watts Up

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Re: Video Winding My Motor
« Reply #2 on: January 05, 2013, 11:58:59 AM »
Now that we have choosen the right motor. How do you get it cleaned up so it looks like in the video? the old windings are really glued or varnished good, what products are used to get it manageable to remove the old windings or it it old style grunt needed?

Offline Ivan

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Re: Video Winding My Motor
« Reply #3 on: January 05, 2013, 03:57:33 PM »
The best way is to have the motor burnt out.  Motor shops cut the head off the motor (head is the end with all the connections and leads) then they put it in the oven (600 degrees F) for a couple hours. By leaving the one end of the coils on the motor gives you something to grab and pull out the winding. 

You don't want to use any chemicals that would possibly dissolve the insulation on the stator laminations.

If you are a real DIYer you can get one of those small single burner, propane stoves (turkey deep fat fryer) that stands by itself, place stator on top of burner, then place metal (sheet metal or ??) on top of stator to retain the heat.

Later EDIT:  We found the perfect burner to use when cleaning out a Stator.  It is the one used to cook Turkeys in peanut or canola oil.  It has a built in stainless steel stand that is strong enough to hold even a 20 HP core and with a 1/4 inch plate or even a simple paving clay square on top, it gets about 550 F. Which will burn out the varnish but not injure the stator plates. After 2-2.5 hours burning and a cooling cycle, the old wire just pulls out. (You must cut off the  head end before burning)

Checkit it every hour, take off cover (with pliers) and see if you can pull the winding from stator.  I take big screwdriver from side of case to go under winding coil and see if it will pry out.

One of the best tools to clean slots or break, slot papers loose, is to use a carpet knife.  They have a 90 degree curved blade with a wood handle.

You can drag the knife down the slots between the, slot paper and stator.

Check out this thread for pics on the turkey cooker.
http://ivanbennett.com/forum/index.php?topic=38.0


:co<:  If you bought just one or two extra can goods a week and donated to a food bank   Nobody would go hungry.

Offline Watts Up

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Re: Video Winding My Motor
« Reply #4 on: January 05, 2013, 06:38:23 PM »
Wow that is very helpful. I did not think the stator could be heated with out damage. how warm can it get? I will certainly give this a try, it makes sense heat will soften the varnish or epoxy. As a DIYer I do not live near a major city that I can get rewinding supplies, is there an online source?

Offline mizlplix

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Motor winding supplies...
« Reply #5 on: January 06, 2013, 09:04:15 PM »
Getting the correct sticks, insulation and therm-resistor is the hardest thing
in the whole rewinding process.

The paper comes in sheets and who needs the extra
 laying around?

If there were enough interest, maybe you could lean on
Ivan to put together and sell a motor rewinding "Kit".  He has been
 through the whole learning curve already...(Just sayn)...

Miz
1930 Ford Speedster, AC50, full manual powerglide, 6.14gears, 38-130AH CALBs.

Offline Watts Up

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Re: Video Winding a 3 Phase Motor
« Reply #6 on: February 26, 2013, 03:51:50 AM »
What voltage is miz motor wound for? I see you are are using a dual layer in the videos. it also looks like 2 different motors in your videos are used, the cases are different.

Here is the coil layout for first phase four poles, Mizs 20 hp motor.

I pulled 12 wires off the roll 75 feet long.

12 inhand,  2 turns,  18 gauge wire.


Offline Ivan

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Re: Video Winding a 3 Phase Motor
« Reply #7 on: February 26, 2013, 04:47:42 AM »
What voltage is miz motor wound for? I see you are are using a dual layer in the videos. it also looks like 2 different motors in your videos are used, the cases are different.

Here is the coil layout for first phase four poles, Mizs 20 hp motor.
I pulled 20 wires off the roll 45 feet long.
20 inhand,  1 turn,  18 gauge wire.

The videos are two diff motors, the big problem here is we are coming up with new info all the time.

I wound the 20hp motor, Mizs motor, the first time for 60-70 volts but could not get the rpm above 3k so I rewound it for half the voltage (about 30 volts) we got more rpm but so far lost a little low end torque.  Our biggest problem is the Curtis Controller is low voltage high amps. Curtis says the motor voltage should be 15-50 volts.

:co<:  If you bought just one or two extra can goods a week and donated to a food bank   Nobody would go hungry.

Offline Watts Up

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Re: Video Winding a 3 Phase Motor
« Reply #8 on: February 26, 2013, 07:32:46 PM »
1 other thing that does not align is the coil layout is for a 48 slot rotor but the videos are 36 slot rotors. you used 3 turns per slot in the videos but the layout shows only 1 turn per slot. Are they over sights?

Offline Ivan

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Re: Video Winding a 3 Phase Motor
« Reply #9 on: February 28, 2013, 01:44:15 PM »
1 other thing that does not align is the coil layout is for a 48 slot rotor but the videos are 36 slot rotors. you used 3 turns per slot in the videos but the layout shows only 1 turn per slot. Are they over sights?

I keep changing the winds so much the videos can't keep up.
:co<:  If you bought just one or two extra can goods a week and donated to a food bank   Nobody would go hungry.

Offline Watts Up

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Re: Video Winding a 3 Phase Motor
« Reply #10 on: February 28, 2013, 05:49:42 PM »
When you changed the wind from 60 volts to 30 volts, did you use half the number of turns and the same number inhand?

Offline Ivan

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Re: Video Winding a 3 Phase Motor
« Reply #11 on: February 28, 2013, 07:04:11 PM »
When you changed the wind from 60 volts to 30 volts, did you use half the number of turns and the same number inhand?
   
60volts 10 inhand 2 turns.     30volts 20 inhand 1turn. Same slot fill
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Offline Horizon

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Re: Video Winding a 3 Phase Motor
« Reply #12 on: June 27, 2014, 02:28:51 PM »
Since Tesla let their patents being available for the public, I thought some of these links would be of use:
- AC winding pattern:
http://images2.freshpatents.com/pdf/US20100244612A1.pdf

- Dual Layer Winding Pattern:
http://www.faqs.org/patents/app/20110198963 (on the right side are the pics)

- Triple Layer Winding Pattern:
http://www.faqs.org/patents/app/20110198961

Offline Ivan

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Re: Video Winding a 3 Phase Motor
« Reply #13 on: June 27, 2014, 06:10:17 PM »
I had seen tesla winding a long time ago. No good to me high voltage.
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Offline Horizon

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Re: Video Winding a 3 Phase Motor
« Reply #14 on: July 03, 2014, 07:10:18 PM »
Surely they are high voltage systems but I was thinking of the winding pattern.
We can lower the voltage with the inhand number and diameter of wire.
Check the pattern it's in the pdf.
- All the best.