New means of automatically selecting motor connections in several steps, either forward with increasing speed or backward as locomotive decelerates during operation up heavy grades, which has been devised and applied to passenger locomotives; method utilizes group of relays energized through medium of tuned circuit by a-c generator mounted on locomotive axle. Paper 48-52 before Am Inst Elec Engrs. (Supp to Ry Gaz) (See also Elec Eng v 67 n 3 Mar 1948 p 221-2; Ry Mech Engr v 122 n 2 Feb 1948 p 95-7)
Speed-responsive devices on diesel-electric locomotives
Diesel Ry Traction
1948
Article (Journal)
English
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