Comparisons are made, with aid of traction diagram, between direct drive with 3-phase motor with or without shafting, and Ward Leonard system of drive with or without flywheel. (See also - nos. 27-28, July 9 1919, pp. 97-99, nos. 29-30, July 23, pp. 105-107)
Notes on electric mine haulage
Beitrage zum Antrieb elektrischer Fo rdermaschinen
Elektrotechnische Rundschau ; 36 , n 31-32
1919
2 pages
3 Figs.
Article (Journal)
German
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