Rocksolid Light - uk.railway - Re: OT: car transmission question

Re: OT: car transmission question

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https://news.novabbs.org/aus+uk/article-flat.php?id=78679&group=uk.railway#78679

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From: recliner.usenet@gmail.com (Recliner)
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by: Recliner - Sun, 31 Mar 2024 08:30 UTC

Charles Ellson <charlesellson@btinternet.com> wrote:
> On Tue, 7 Feb 2023 11:31:14 -0000 (UTC), Anna Noyd-Dryver
> <anna@noyd-dryver.com> wrote:
>
>> Recliner <recliner.usenet@gmail.com> wrote:
>>> On Mon, 6 Feb 2023 09:41:28 -0000 (UTC), Muttley@dastardlyhq.com wrote:
>>>
>>>> On Sun, 5 Feb 2023 10:38:02 +0100
>>>> Bob <bob@domain.com> wrote:
>>>>> On 04.02.23 23:01, Marland wrote:
>>>>> Overheating stalled motors are a feature of DC motors, something that
>>>>> was made obsolete on the railways in the 1980s, and not a feature of any
>>>>> modern electric cars. VVVF power electronics driving AC motors is what
>>>>> is done now, and that does not behave in that way.
>>>>
>>>> If the energy doesn't get used to move the vehicle then it has to go somewhere
>>>> and that somewhere is heat. AC or DC is irrelevant. Locos have huge cooling
>>>> fans on their motors and trucks will need a similar system.
>>>
>>> What makes you think the huge cooling fans on locos are for the motors?
>>>
>>
>> Traction Motor Blowers are definitely a thing on locomotives (but not
>> usually on multiple units AFAIK), but you're right to say that they're not
>> usually the major cooling system on an electric locomotive.
>>
> A quick Google search suggests that such things are used on EMUs by
> furriners whose motors are fewer in number thus of higher power (think
> electric HST). If you want them, ABB have got them.
> https://new.abb.com/motors-generators/traction-motors-and-generators/traction-motors/electric-multiple-units
>

Detroit is Cleveland without the glitter.

aus+uk / uk.railway / Re: OT: car transmission question

aus+uk / uk.railway / Re: OT: car transmission question

Subject	Author
Re: OT: car transmission question	Recliner