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Re: OT: help with motor run capacitor sizing
Original poster: <a1accounting@xxxxxxxxxxxxx>
I don't think anyone replied to you so.
There is probably no one formula is it would be dependent on the L R
ratio of your winding.
You could try putting a diode in series with each winding. The idea
being that each winding is powered by alternative half cycles. You
may have to do this at a lower supply voltage because the L of the
windings will not limit the current.
> From: "Tesla list" <tesla@xxxxxxxxxx>
> Date: 2006/06/18 Sun AM 12:41:02 EDT
> To: tesla@xxxxxxxxxx
> Subject: OT: help with motor run capacitor sizing
> Original poster: David Speck <dave@xxxxxxxxxxxxxxxx>
> May I ask the EE types on the list for a little help with a not
quite TC item.
> I have a number of two coil motors, some of them steppers, that I
> would like to use as simple AC motors by wiring them as capacitor
> run motors. One winding would run directly across the power supply,
> and the other winding would run in series with an AC cap to provide
> a phase shift.
> Is there a formula that would suggest the optimum run capacitor value
> based on the inductance of the windings, or the current draw through
> one winding at their rated voltage?
> Thanks in advance.