Talk:Reluctance motor

Incorrect photo?

I'm not entirely sure, but I don't think the disassembled motor in the picture is a reluctance motor; it looks like a shaded-pole asynchronous motor to me. The two short-circuit copper windings for the shaded poles are clearly visible, and the rotor looks like a fairly typical skewed squirrel cage. Also, the use of such a motor is very common for small fans for mains operation. Because I'm not quite sure, and for the lack of a better photo, I've left it in place. 80.56.185.91 (talk) 13:02, 29 November 2009 (UTC)

Me neither. Definitely a shaded-pole stator, but the rotor looks like it might have 3 salients all encased in die-cast pot metal - this would make for quite a variation in reluctance as the motor turns. I, too, would like to see a more classical demonstration of the device but I think this one qualifies. --Wtshymanski (talk) 15:35, 29 November 2009 (UTC)

I'll remove the photo File:Reluctance machine.jpg now. Nillerdk (talk) 07:47, 7 April 2010 (UTC)

Diagram

Chris 15:54, 19 December 2006 (UTC)

Hello, I´m Pedalito from the german Wikipedia. I have created some diagrams of this motor, maybe they could be useful for your article:

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Spam

A link to electojects.com has been repeatedly added to Stepper motor, Electric motor and Brushless DC electric motor by Special:Contributions/217.53.109.235, Special:Contributions/82.201.156.201, Special:Contributions/217.53.107.168, Special:Contributions/217.53.16.164, and others.

The link in question is registered to Abdoh Ali Mohamed, Hay Swesri, Nasr City, Cairo, Egypt.[1]

I wonder if the four IP addresses listed above have any connection... Naw, couldn't be. [2][3][4][5] Egypt is a big country. Must be a coincidence.

I'm going to start patrolling wikipedia for any links to electojects.com or redirects to it and deleting them on sight. If they come back, I'll move to blacklist the address. Mdsummermsw (talk) 18:23, 28 December 2007 (UTC)

asking the construction of reluctance motors

What is the construction of reluctance motors? —Preceding unsigned comment added by 213.55.94.34 (talk) 09:00, 17 January 2008 (UTC)

asking for source of "applications" section concerning the jet engine

That material is highly specific to a particular manufacturer/application. It should include a citation as such.

Control engineering magazine (www.controleng.com)[Reed Business Pubs] March 2010 p38ff has a nice article by Frank J Bartos, PE, that mentions www.emerson.com, www.emetron.com, and www.rockymountaintechnologies.com (drive and motors) as sources of controls and motors of this type.

incomplete type description

The introduction refers to 4 types of reluctance motors, but the motor types section only describes two of them. —Preceding unsigned comment added by Olivier.rieux (talk • contribs) 13:38, 15 June 2010 (UTC)

generator

Can a switched reluctance motor be driven "in reverse" as an electric generator? A switched reluctance motor doesn't have any permanent magnets, so it is hard to see how it is possible -- but I know that some of the biggest electric generators somehow work fine without any permanent magnets. --68.0.124.33 (talk) 03:53, 16 March 2011 (UTC)

I've never heard of a switched reluctance generator, aside from the weird high frequency alternators used for radio in the elder days; but generators as used in power plants have electromagnet fields. --Wtshymanski (talk) 13:40, 16 March 2011 (UTC)

Yes. Just do a web search on "switched reluctance generator", and you'll get plenty of hits... EdwardEditor (talk) 22:16, 10 December 2012 (UTC)

number of stator and rotor poles

"Synchronous reluctance motors have an equal number of stator and rotor poles" > have unequal ? — Preceding unsigned comment added by 193.23.171.249 (talk) 09:24, 26 November 2013 (UTC)

Incomplete sentence in lead-in

"...Rotor does not have any windings." That is an incomplete sentence, it kind of stands out if you're an English reader. It should read "The rotor..." Does anyone have an opposition to fixing that? Thanks. Damotclese (talk) 17:25, 23 September 2016 (UTC)

Applications: HDD motor

Motor which spins the platters usually is an ordinary permanent magnet synchronous AC motor (its rotor contains a permanent magnet), so it cannot be reluctance motor, whose rotor does not contains any permanent magnets. It cannot be a head assembly actuator either, because that also uses magnets (and that usually is not referred as motor anyway). If reluctance motors are used in HDDs, they are rare. Citation needed for example of HDD using a reluctance motor. -Yyy (talk) 08:40, 21 December 2016 (UTC)

Came here to say the same thing! Needs a source.MacroMyco (talk) 23:14, 15 October 2017 (UTC)

Cheap and simple

For many decades, reluctance motors have been cheap and simple. Low cost and simplicity has led to common use in inexpensive clocks, timers, microwave oven turntables, and other applications requiring low-power and low speed. Have you ever noticed that a turntable runs in random directions? That is because the reluctance motor starts in a random direction. Clocks have a pawl forcing one direction only. Comfr (talk) 19:12, 31 July 2020 (UTC)