Talk:Shaded-pole motor

	Engineering portal This article is within the scope of WikiProject Electrical engineering, a collaborative effort to improve the coverage of Electrical engineering on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.Electrical engineeringWikipedia:WikiProject Electrical engineeringTemplate:WikiProject Electrical engineeringelectrical engineering articles
???	This article has not yet received a rating on the project's importance scale.

A recent posting on USENET asked (in effect) about the RPM - voltage characteristics of such motors, then (as so often on USENET), descended into a shouting match. Which is why I came here. I know which of the opinions I *think* is right, but I know that I don't know enough to be sure. so, is anyone monitoring this page who can cite sources and address this issue?

Message-ID: <01epd3535avsf07dbq48ce9pi50dsfj4qq@4ax.com>
References: <HmgkyRO0rB3GFAZv@ifwtech.co.uk> <yrZjuD6iHK3GFwe9@ntlworld.com> [SNIP HEADERS]
On Tue, 04 Sep 2007 00:10:34 GMT, raden <doesn't@matter.com> wrote:
>Total bollocks - more volts - faster rotation > >the shaded pole is the pair of thick copper wires on the laminations, >its there to determine the direction of rotation, it has no effect on >the speed
Shaded poles motors may be synchronous or non-synchronous, depending on how their rotor is constructed. For the small low-torque models used to drive timers, they're almost universally synchronous.
Evenm the non-synchronous ones are pretty insensitive to increased voltage, as they're limited by the magnetic saturation of the core.

I thought that the geometry of the cage and the frequency of the AC determined the free-running speed of the motor, and the voltage (and current draw) the stalling torque. But IANA-physicist or electrical engineer. A Karley 07:40, 4 September 2007 (UTC)[reply]

C-frame motor not typical[edit]

The motor shown is a C-frame or open frame motor, which does use shaded poles, but is not what someone wants if they specify shaded pole motor. The open frame ones are very inefficient because there is so much stray field. Physicsjock (talk) 03:49, 7 October 2008 (UTC)[reply]

Needs photo[edit]

There is a good photo of the stator, but none of the rotor. The rotor construction is interesting. David Spector (talk) 19:40, 10 November 2017 (UTC)[reply]