Re: Near miss at Victoria (London)

["Chris Downs" <cvdowns@ozemail.com.au>]

On the 1st point I thought you needed to "excite" the motors to commence
regen..  Therefore if there is no external supply can you commence regen.
braking?

As for the other 2 points they were just suggestions.  The input of anyone
with techo knowledge would be appreciated.

Chris

jjjim <jjjim@bigpond.com> wrote in message
3A59BE2C.758A4B7E@bigpond.com">news:3A59BE2C.758A4B7E@bigpond.com...
> Regnot sure what your saying,  but  Regen braking uses power in cases i know
of,
> specially in AC ,  but even DC motors can use reverse current instead .
on the
> EMUs  the emergency break almost  shorts the DC motors apparently (according
to
> afriend who works at QR)  and the resitor glows red hot hehe
>
> Chris Downs wrote:
>
> > What stops the train from producing a current from regen. braking?  Regen.
is
> > inoperable (no power available to initiate regen. or it's deliberately
made
> > inoperable or unreceptive overhead prevents it use or ?) if the overhead
is
> > dead?
> >
> > Chris
> >
> > jjjim <jjjim@bigpond.com> wrote in message
> > 3A56B05E.4A8A771F@bigpond.com">news:3A56B05E.4A8A771F@bigpond.com...
> > > Yeah exactly . the trains still going to roll , and in the case of
trains
> > > that use the traction motors for Braking,  there would be now only air
> > > brakes to tread on :/
> > >
>