Talk:DR Class 250

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Trains: in Germany / Locomotives Mid‑importance

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Cannibal Trains[edit]

I've commented out a sentence which neither made sense (to me, a non-trains expert) nor was lifted from the German Wiki. It's in the 'History' section. Anyone who knows something about cannabalised trains, please take a look! Cheers. Cricketgirl 10:38, 25 June 2007 (UTC)[reply]

Yep, it just means the poor trains get cut up for parts to keep the other ones going. I replaced it with wording to that effect, along with some other edits for clarity.SlackerMom 21:52, 19 July 2007 (UTC)[reply]

AC motors? Unlikely.[edit]

Despite what the article says, this locomotive probably doesn't use AC motors per se, rather it must be the so-called "universal" motors, which are DC motor designs with modified connectors. These are fed with low-frequency AC current, that results in a significant but still tolerable amount of arcing and sparking. (Arcing becomes intolerable over 25Hz AC in large sized universal motors. The very meaning of the 50/3 = 16,66Hz traction system was to allow use of universally connected DC motors under the 15kV catenary.)

Nota bene: in railway traction the name of "AC electric motor" is usually reserved to honest AC motors of the Tesla / Dolivo / Kando heritage, built with squirrel-cage or slip-ring designs. 82.131.156.136 (talk) 22:23, 13 March 2016 (UTC)[reply]

No references; fails WP:V[edit]

A W:BEFORE search in English turned up no authoritative sources. A search of German wikipedia at :de:DR Class 250 and :de:DR Class 155 turned up nothing. The article was likely sourced from the German version. What to do? Rhadow (talk) 21:57, 23 November 2017 (UTC)[reply]

The article already has an {{Unreferenced}} tag, clearly isn't a hoax (see photos), has equivalents in seven other Wikipedias and doesn't raise any urgent issues such as BLP. I would boldly do nothing in this case. The article is much better than nothing, and forms a solid basis for future improvement. Certes (talk) 12:36, 24 November 2017 (UTC)[reply]

@Rhadow: I did a WP:BEFORE check too, with different results:- Sources available - Modelleisenbahner Magazine issue 10 (1974) and issue 64 (2015); Eisenbahnmagazin October 2012 and June 2016; Fiebig, Gunther; Bäzold, Dieter (1987). Ellok-Arkiv (in German). Berlin: Transpress. ISBN 3-344-00173-6., Deiss, Richard (2010). Silberling und Bügeleisen (in German). Norderstedt: Books on Demand GmbH. ISBN 978-3-839-1626-99.; Bahnarchiv, Lokodex, Lok-datenbank, Bahnbilder. Mjroots (talk) 16:28, 25 November 2017 (UTC)[reply]