Astro 3220 Rewind

Electric Motors and Controllers
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coleasterling   100 W

100 W
Posts: 141
Joined: Sep 21 2010 3:37am

Astro 3220 Rewind

Post by coleasterling » Mar 27 2018 2:31pm

I have a burned Astro 3220 and would like to do a rewind on it. I already stripped the winding from the stator, but it was damaged badly enough that I was not able to follow the scheme. Has any rewound a 3220 or other similar motor? Do I need to find and follow the same distributed scheme they used, or would a more standard wind be fine? This will be my first large rewind, so going to be learning a lot!

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Miles   100 GW

100 GW
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Joined: Mar 16 2007 4:15pm
Location: London UK

Re: Astro 3220 Rewind

Post by Miles » Mar 28 2018 7:38am

Hi Cole,

It's 8P 24T which is an integer-slot winding.
Best to wind it as a single layer winding to get a winding factor of 1. That means the coil will span 3 slots.
See here for more information: https://www.emetor.com/windings/
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coleasterling   100 W

100 W
Posts: 141
Joined: Sep 21 2010 3:37am

Re: Astro 3220 Rewind

Post by coleasterling » Mar 28 2018 10:53am

Excellent, thanks Miles! That's exactly what I needed.

-Cole

coleasterling   100 W

100 W
Posts: 141
Joined: Sep 21 2010 3:37am

Re: Astro 3220 Rewind

Post by coleasterling » Mar 29 2018 2:20pm

On this topic, what's y'all's favorite source for wire? I had a site saved years ago for 200C rated stuff, but can't seem to find it now.

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