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Re: Is this motor synchronous?
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To: "'Tesla List'" <tesla@pupman.com>
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Subject: Re: Is this motor synchronous?
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From: Tesla List <tesla@stic.net>
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Date: Wed, 24 Dec 1997 22:05:15 -0600
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Approved: tesla@stic.net
From: Brent Turner[SMTP:bturner@apc.net]
Reply To: 70314@pupman.com
Sent: Wednesday, December 24, 1997 1:01 AM
To: Tesla List
Subject: Re: Is this motor synchronous?
Gary -
What you have is a synchronous motor, but not a salient-pole
synchronous motor. Your motor is RPM-locked to the line frequency
(1725-RPM motors aren't - they have what is called a 'slip' factor.)
but not indexed via discrete (salient) poles. The current draw should
be the first give-a-way. Hard-core salient-pole motors pull far more
current than a 1725-rpm motor of equivalent power.
- Brent
Tesla List wrote:
>
> From: Gary Lau 23-Dec-1997 1018[SMTP:lau@hdecad.ENET.dec.com]
> Sent: Tuesday, December 23, 1997 8:29 AM
> To: tesla@pupman.com
> Cc: lau@hdecad.ENET.dec.com
> Subject: Is this motor synchronous?
>
<<SNIP>>
> Is it possible for a motor to be synchronous but at an arbitrary and
> variable phase? Is this motor unsuitable for a sync RSG, or is my
> analysis technique flawed?
>
> Gary Lau
> Waltham, MA USA