Re: [NSW] AC traction motors for Tangara's?

["Hubert Lam" <hubert@imap4.com>]

yes, 60 cars out of something like 400, that's a lot wasn't it?!?

the whole HK fleet was ALREADY air conditioned in 1980, not like our K sets needing another
$10million to air condition the remaining 80 or so cars


"Jonathan Boles" <mousewithglasses@mail.com> wrote in message
01bfb8de$bb86fe20$69df868b@tom-boles">news:01bfb8de$bb86fe20$69df868b@tom-boles...
>
> > and btw, those 1st-G trains were introduced in 1980 with air conditioning.
> what did WE have in
> > 1980??? damn it S sets!!!! (OK, a K set or two but they were rare!)
>
> There are afaik 15 a/c K-sets (the greatest train in Australia, btw) in
> existence, which are usually coupled in pairs around sector 3. But often, a/c K
> sets (the greatest train in Australia, btw) are mixed with non-a/c K sets, or
> even S sets, which really pisses me off when I get on at the wrong end of the
> train.
>
> a/c K sets (the greatest train in Australia, btw) would have been rare though
> back then, because IIRC they were used on services to Gosford. (Did they run
> via Shore or did they run with the U boats???)
>
>
> >
> >
> >
> > "Chris Downs" <cvdowns@ozemail.com.au> wrote in message
> > 1fxR4.16105$PL4.393827@ozemail.com.au">news:1fxR4.16105$PL4.393827@ozemail.com.au...
> > > Hong Kong converted their first generation (?) underground trains from
> > > camshaft to chopper control at their mid-life overhaul.  This was mentioned
> > > in "Modern Railways" UK mag some time in the last 12-18 months.
> Electricity
> > > consumption savings and maintenance savings will more than pay for the
> > > conversion.
> > >
> > > Chris
> > >
> > > Matthew Geier <matthew@mail.usyd.edu.au> wrote in message
> > > 8f4ucc$38v$1@metro.ucc.usyd.edu.au">news:8f4ucc$38v$1@metro.ucc.usyd.edu.au...
> > > > In article <8f2q5g$9qu$1@nnrp1.deja.com>,  <eikkert@my-deja.com> wrote:
> > > > >
> > > > >> How economically viable is it to convert the system over to AC? Cost
> > > > >> versus benefit?
> > > > >
> > > > >Personally, I doubt it'd be done en masse, not yet. Perhaps in a half
> > > > >life overhaul?
> > > > >
> > > >
> > > >  The first Tangara sets are nearing half-life overhaul stage. Nearly 15
> > > years
> > > > since the first one arrived and did all those promotonal runs for the
> > > Unsworth
> > > > electon campain towed by a diesel.
> > > >
> > > >  It is also not known internationally for EMU's to be refitted with
> > > different
> > > > motor control technology at their mid-life heavy overhaul. I have read of
> > > > cam-shaft DC emu's becommng VVVF inverter AC motored EMU's. (Washington
> > > DC?)
> > > >
> > > >  A Tangara would be relatively easy to convert, as the traction system is
> > > > modular. At the half-life refit they would be replacing the power cables
> > > > anyway, so at that time they can make sure the motor feed cables are
> > > suitable.
> > > > The actual chopper unit is in a easly removeable pod. No problems there.
> > > The
> > > > motors are also modular - replace the bogie!
> > > >
> > > >  Recently I thought I heard a T set make noises like G7. I thought I was
> > > > imagining things. Possibly not....
> > > >
> > >
> > >
> >
> >
> >