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Old July 24th 09, 10:07 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 First passenger service journey for LUL 09 stock

On Jul 24, 11:00*pm, "Just zis Guy, you know?"
wrote:

With AC motors it is a constant current, its not as high as the DC
peak, but it never tapers off, it is flat, across the whole train
speed. But at all times it is considerably higher than the DC motor
train at speed.


Although there is also the issue of DC versus RMS current. *



Yes ...

that can be a source of confusion

..... but we are talking here of the current draw on the DC traction
third rail in both cases i.e. for both the DC motor [1967] and AC
motor [2009] trains. RMS does not come into this debate in the
discussion as it is a tthe moment.


--
Nick