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[quote]QUOTE: Originally posted by dldance If one were to start with a clean sheet of paper on railroad electrification, there are very interesting technologies which can improve the reliability and safety - whether cat or 3rd rail. One is the application of computer controlled power dispatching. Under this system, most of the electrical system would be at very low voltage most of the time. In reponse to the train signaling system, with further control from dispatching, voltage would jump to railroad power levels a few seconds before the engines arrive in that block and then drop back to low control voltage after the engines had passed. This is very similar to the way that model railroads operate. Properly designed, most of the train would be over(under) dead power leads for safety. [/quote] Interesting. On the one hand, this method could reduce attenuation losses in the overhead wires. On the other hand, wouldn't this type of system hamper the ability of downhill trains to return power to the system via regenerative braking systems?
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