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[quote]QUOTE: Originally posted by jchnhtfd For Joe -- if a locomotive is dead in tow or isolated, the traction motors will develope no electricity, as they are disconnected. To generate electricity, as in dynamic braking, they have to have some current supplied by the prime mover (oddly enough) so that they can then generate a lot more -- I know it sounds like something from nothing, but the lot more current is what slows the train down. [/quote] In other words, the prime mover's generator must act as an exciter for the field coils of the motors so that the motors act as dynamic brakes, right? This was what was required on my second ship - the diesels (four 1000HP Caterpillars) provided power to four 1100HP electric motors, with one diesel providing excitation.
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