Talk:Traction motor
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I see someone is on their way to creating an article about asynchronous traction motors.That's good, but I believe that some ac traction motors are synchronous, driven by a variable-frequency drive. I *THINK* I've heard that this is the case with certain TGV generations.
Perhaps someone can chime-in with more details? (...or correct me?)
Atlant 20:45, 8 Feb 2005 (UTC)
A recent editor removed the language calling siderod-coupled traction motors "ancient", claimingthat they date into the 1950s. Is this true? certainly in North America, they were all gone from any mjor applications long before that; I'd guess near the turn of the century.
Opinions? Facts?
Atlant 13:03, 13 Apr 2005 (UTC)
Ahh, I think I see where we may not be communicating. Although I didn't write it explicitly, the model I had in mind was of a single carbody-mounted traction motor which was then connected to body-mounted driving wheels in much the same way as on a steam locomotive. These did exist, but I really do think they were ancent history. I think you, on the other hand, are describing an arrangement where a single bogie-mounted traction motor is coupled to multiple wheelsets/axles in the same bogie through side rods.
Have I now got it right?
If so, I'll edit the language in the article to make clear what each of us meant. :-)
Atlant 15:38, 13 Apr 2005 (UTC)
"In the case of the TGV power units, each axle is driven by a motor mounted to the power unit's frame; a "tripod" drive allows a small amount of flexibility in the drive train allowing the trucks (bogies) to pivot."
Hello i would like point that this seams to apply to the motored trucks located right under the TGV power cars but, in all TGVs (exept "TGV pendulaire") there are two other motored trucks located under the first and the last passenger cars respectively, this is why the TGV pendulaire had to be coupled with a standard TGV to attain speeds higher than 220km/h(136mph) because, at that time alsthom did not developed motored trucks that could tilt.i wonder if these other motored trucks are powered by a "tripod" as well.
http://www.trainweb.org/tgvpages/p01.html
vehicle electric motor would treat car electric motors. --HybridBoy 19:55, 9 May 2007 (UTC)[reply]
Needed: a short one sentence definition for each of the terms: "power unit" and "truck". Rtdrury 21:54, 15 May 2007 (UTC)[reply]
Regarding railways: There are various types of traction motors and various ways of controlling them. It's a big topic. Diesel locomotives also regulate the diesel engine and should result in tracking the optimum trace on the Brake specific fuel consumption map of the engine. So the control of the traction motors must be coordinated with control of the diesel engine (all automatically of course). What about the field weakening circuitry? Also, there's the operation of the controllers (many non-US ones had 16 forward speeds). Variable voltage is used on AC locomotives with transformers, and power electronics can vary the AC voltage inverted from a DC supply. For rail locomotives I think at least 2 new articles are needed: one for diesels and another for electric. But I don't have time to do this.David S. Lawyer 00:55, 5 January 2014 (UTC) — Preceding unsigned comment added by Dlawyer (talk • contribs)
This should be called LIQUID cooling, not "water cooling". Water is just one possible substance. Ethylene glycol works. You can use alcohol, all kinds of other liquids, to serve a vast range of temperatures. If I wanted to write about one of these, am I supposed to do it on a page about "water cooling"? I never even hear anyone say "water cooling". An engine is either "air-cooled" or "liquid cooled". I've heard of "liquid cooled computers", but never "water cooled" ones. What about oil cooling? That ought to be part of liquid cooling, right along with water cooling. They are both liquids, and we don't need a separate article for every possible substance. Liquid cooling works the same, within a limited range of techniques. Circulating and radiating, direct evaporation, circulation and evaporation, and as a heat sink. Those are all forms of "liquid" (including water) cooling..45Colt 02:24, 29 November 2015 (UTC) .45Colt 02:24, 29 November 2015 (UTC)[reply]
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This section states that "Parts of a rail system might use different voltages, with higher voltages in long runs between stations and lower voltage near stations where slower operation would be useful." Has this ever happened? This appears to me to be idealistic speculation and not fact. Since Wikipedia aims to state facts, it should probably be removed. Chris.Bristol (talk) 23:29, 26 June 2018 (UTC)[reply]
where slower operation would be useful.to
where only slower operation was needed.Andy Dingley (talk) 11:37, 27 June 2018 (UTC)[reply]