Re: [NSW] Power of V-set traction motors

[John MacCallum <engineman@ozemail.com.au>]

I doubt if you can get a good parallel run with a V set on the
1 /33s up Weemala. The grade doesn't start until the Sub Station.
When I have been up front on long 1/33s the speed has come
back to about 65-70.
Can't help you with differences in Power between Choppers and
Cam shaft sets.

john

Chris Downs wrote:

> V sets travelling on the down from Faulconbridge to Linden on the longish 1 in
> 33 rising grade tend to have there speed equalise (or very close to) on this
> stretch.
> 
> When pacing V-sets by car the equalising speeds seem to vary from a low of
> just under 60km/h to a high of about 75km/h.  From on board observation sets
> with all chopper motor cars are usually the quicker and some camshaft sets
> (earlier cars?) are slower.  This suggests a lower kW/motor in earlier cars
> and higher kW/motor in later cars.  Sometimes poorer performance could be down
> to motors cut out but what I've observed seems too consistent for that.
> 
> Can anyone tell me what these power ratings are?
> 
> TIA
> 
> Chris