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Old 07-20-2013, 02:02 AM   #1
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Default Electric motor wiring question

I have an old three speed house box fan. If I accidentally apply power to TWO of the windings at the same time (momentarily) what would happen? Do I blow something up OR does the fan not run OR does it run normally (maybe at a faster speed than the sum of both speeds)?

I am putting light switches on each winding for a project and there could be a point where I mistakenly switch two speeds on at the same time.

Thanks!

Edit: Or am I wrong. Does a three speed fan run three sets of windings at the same time to achieve max speed? I'll have to get the switch and test it.

Last edited by rmcelwee; 07-20-2013 at 04:51 AM.
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Old 07-20-2013, 09:16 AM   #2
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Nope, windings are independent of each other. Project was scrapped anyway (still using the stock 4 position switch and one light switch).

Carry on...
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