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| London Transport (uk.transport.london) Discussion of all forms of transport in London. |
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#3
April 12th 10, 01:56 PM
posted to uk.transport.london,uk.railway
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Upgrading sub surface tube lines to 750V
On Mon, 12 Apr 2010 14:50:26 +0100
"Paul Scott" wrote: http://www.tfl.gov.uk/corporate/medi...tre/15249.aspx but they don't explicitly say they are raising the system voltages - it wouldn't necessarily follow anyway, the regulated voltage could stay the same but with a higher current draw being allowed. Raising the voltage does seem an odd thing to do not least because they dropped the voltage from 640V years ago citing power saving reasons (which sounds like rubbish TBH , lower voltages are less efficient , not more). B2003 |
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