Re: [NSW] V set cars

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

The DJMs and DKMs also have a faster releasing service brake.  Whereas the
DCMs and DIMs let out a continuous and diminishing "sigh" when the brakes
are released the chopper cars have an initial rapid sigh followed by a pause
and the a residual, and again rapid sigh to fully release the brakes.

I understand the reasons for the two stage release on DJM/DKM cars is to
maintain some compatibility with the slower release on DIM/DCM cars.

I don't know if a similar process is applied upon application.

Chris

C. Dewick <craigd@lios.apana.org.au> wrote in message
85e8fb$1e6$1@lios.apana.org.au">news:85e8fb$1e6$1@lios.apana.org.au...
> In <85cg7b$834$1@news1.mpx.com.au> "Hubert Lam" <hubert@imap4.com> writes:
>
> >what is the difference between DJM/DJT, DIM/DIT (and whatever other
D?M/D?T)
> >cars?
>
> >It's obvious that DKM/DKT are newest, but DJM and DIM is rather difficult
to
> >tell
>
> Ok, the most obvious difference is that the DJM and DKM motor cars have
GTOT
> (Gate Turn Off Thyristor), aka 'chopper', traction control equipment,
while
> the others all have the older switched-resistor version. Just like the
> Tangara's and the 'C' set suburbans, you can tell the DJM's and DKM's by
> listening for the 'singing' of the chopper units when powering and during
> electric braking.
>
> I don't drive the intercity trains so I can't really comment too much
more,
> other than corroborating what you said about the the DKM/DKT pairs because
> the exterior stainless steel fluting is different from the older cars (DJx
> series and back).
>
> Regards,
>
> Craig.
>
> --
>             Craig Ian Dewick            |       Stand clear - jaws closing
>  Send email to craigd@lios.apana.org.au |  Visit my Australian rail
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