In article , The Natural Philosopher
scribeth thus
On 25/04/14 23:55, Dave Plowman (News) wrote:
In article ,
The Natural Philosopher wrote:
take away a massive steel disc brake cos regenerative braking absorbs
most of the power,

You don't need massive steel disc brakes for moderate retardation. What
you do need them for is a panic stop from 90 mph. And regenerative braking
ain't going to do that.

Oh yes it is.

you put a short across a leccy motor and it stops dead in its tracks mate.

the disc brakes are there to get to to a final stop, not to absorb the
bulk of the energy.


Never mind motah's its been used for trains for years and years..

Even AC ones now...

--
Tony Sayer