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From: Kevin McMurtrie
Subject: Re: 120vac fan on 220vac
References: <%rQP9.582$8M3.firstname.lastname@example.org> <5iv7OEA7+AE+EwkX@jmwa.demon.co.uk> <_O8Q9.13177$jM5.email@example.com>
User-Agent: MT-NewsWatcher/3.2 (PPC Mac OS X)
Date: Wed, 01 Jan 2003 01:50:24 GMT
NNTP-Posting-Date: Tue, 31 Dec 2002 17:50:24 PST
In article ,
"Phil Allison" wrote:
>"Da Man" wrote in message
>> > > >
>> > > >
>> > >
>> > > It could be anything during the experimentation stages of finding the
>> > > right capacitor.
>> > ** Not "anything" - but various AC voltages less than 220.
>> Um, if it hits series resonance, it will hit 1000's of volts.
> ** Rubbish. A mini fan has much more resistance than inductance at 60
> The phase angle is only 20 to 30 degress - go test one.
I've already said that I've seen 270VAC induced in two phase 120VAC
It really depends on how the fan motor creates a rotating magnetic
field. The shorted windings type are mostly resistive but others could
make a fine resonance circuit when the mechanical load is light.
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