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| Re: Why isn't Alternating Currentu used to power Subways? (was R1/9 acceleration) (664359) | |||
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Re: Why isn't Alternating Currentu used to power Subways? (was R1/9 acceleration) |
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Posted by JournalSquare-K-Car on Sun Aug 10 13:10:52 2008, in response to Why isn't Alternating Currentu used to power Subways? (was R1/9 acceleration), posted by JournalSquare-K-Car on Sun Aug 10 12:06:09 2008. Actually, now that i recall, the signalling with an AC powered system is a bit mor complicated, correct? But how much more complicated, if this is indeed the case?I know AC systems need impedance bonds to allow propulsion current to pass, and to keep signals within a certain area. I asked about these devices a while ago, but that is their general idea. |
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