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Re: how deep do the coilers prefer doing it? : )



Original poster: "Dmitry (father dest)" <dest@xxxxxxxxxxx>

Hallo Claude,

two windings are not identical - so what? at nominal load you have
circular rotating field like in "true two phase motor" - single-phase
motor physically can`t have circular field - only pulsed or elliptic
one.
and windings are not out of phase with each other - their offset is 90
electrical degrees.
you can call it "asymmetric two-phase motor", but it`s steel two-phase.

> Original poster: "claudio masetto" <claudmas@xxxxxxxxxxxxxxx>

> It is still called a three phase motor because it has three identical
> windings, even though it is connected to a single phase supply.
> A single phase cap run motor is not a true two phase motor. It is a
> single phase motor designed to run on single phase with two windings
> which are not identical and are out of phase with each other.

> Claude.

>>Original poster: "Dmitry (father dest)" <dest@xxxxxxxxxxx>
>>
>>Hallo Claude,
>>
>>take real three-phase motor, arrange windings in star connection,
>>connect phase "a" to the hot wire, phase "b" to the neutral one, phase
>>"c" to neutral again in series with capacitor, the motor will run at
>>65-85% of its nominal power - "It is still considered a single phase
>>motor because it is connected to a single phase supply"?
>>: D
>>
>> > Original poster: "claudio masetto" <claudmas@xxxxxxxxxxxxxxx>
>>
>> > It is still considered a single phase motor because it is connected to a
>> > single phase supply.
>> > The phase relationship between the run and start windings is different.
>>
>> > It can be called a start or auxillary winding. I've seen it called both
>> > often.
>>
>> > Claude.
>> > ----- Original Message -----
>>
>> >  > Original poster: "Dmitry (father dest)"
>> >  >
>> >  > Hallo Claude,
>> >  >
>> >  > > Original poster: "claudio masetto"
>> >  >
>> >  > > Any winding in a single phase induction motor which is connected
>> >  > > directly accross  the supply is known as the run winding.
>> >  >
>> > > cap run motor is not single-phase - it`s two-phase if you didn`t > know.
>> >  >
>> >  > >  In a cap run motor a cap is connected in series with the start
>> >  > > winding and this cap is called the run cap but the winding is still
>> >  > > called the start winding.
>> >  >
>> >  > no, this is not starting winding - it`s auxiliary winding.

-----
Let the bass kick! =:-D