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Join Date: Jun 2008
Posts: 53

Axial Flux Coils for Stator

02/26/2010 7:41 AM

I have coils that I have taken out of micro wave transformers ,one coil is fine wire the other is 14gauge and they are wound very tight and I would like to use the 14ga coils in a axial flux alternator but they are larger than the Hugh Piggot design so the magnets need to be larger or multiple . I am wondering if this will work well and how should I arrange the magnets . The coil dementions are 2-3/4"wide OD x4-1/2"long OD x5/8" thick and the hole inside is 1-3/8" ID x3"ID. And can I use the fine wire coil or will they over heat ? the wire is very thin and there must be hundreds of feet in the coil . Thank you for you input . Brian

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Guru
Australia - Member - New Member Engineering Fields - Mechanical Engineering - New Member

Join Date: Sep 2006
Location: NSW Australia
Posts: 1101
Good Answers: 23
#1

Re: Axial Flux Coils for Stator

02/27/2010 8:31 AM

Do not mess with the fine wire coils they are high voltage output in the original design you could receive some serious shocks from them and of no use for your purpose.

The heavy coils would give you a better result even if they are larger than the magnets,you would have a lower output than one if the coil matched the magnet size. You will still have to mount your magnets to suite the coil pitch no matter what size they are.

You need to do some experimental runs to see what speed produces what voltage, if they are from a large microwave they are probably good for up to 10Amps output.

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#2
In reply to #1

Re: Axial Flux Coils for Stator

02/27/2010 8:53 AM

Thank you for your reply ,part of the reason I want to do this is to recycle and reuse , the coils are well made and tight and I can get the transformers for .25 per pound so the coil cost about $2.50 .

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