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Old January 18th 08, 09:28 PM posted to uk.transport.london, uk.railway
D7666 D7666 is offline
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First recorded activity at LondonBanter: Jul 2003
Posts: 529
Default North London Line AC/DC question

On Jan 18, 12:49 am, David Hansen
wrote:

In general a system takes low voltage DC from the supply (the
conductor rail) and inverts it to low voltage AC at variable
frequency, to operate the motors.


Supply 750 V DC - is lifted to higher DC for the HVDC link - VVVF AC
in most case AFAIK.

--
Nick