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25th June 2008, 06:03 PM

On Wed, 25 Jun 2008 12:31:49 +1000, Paul Blair wrote:

> The Victorians will now have an interesting situation. Their system
> seems to be slowly going to standard gauge, but their metro system is
> broad gauge and 1500 VDC. Shopping for equipment just go a whole lot
> harder...

The Sydney and Melbourne suburban systems are probably bigger than the
rest of the Australian city urban railways combined. Sydney and Melbourne
individually are probably bigger than the rest combined.

1500vDC is a common system world wide. The southern half of France is
1500vDC for example.
Effectively the only difference between the traction electronics in a
25kV AC train and a 1500v DC train is that the AC train is carrying a
transformer.

Track gauge and particularly the loading gauge would have a more
significant impact.

25th June 2008, 06:03 PM	#5 (permalink)
Matthew Geier Guest Posts: n/a Classified Rating: % ()	Adelaide Electification On Wed, 25 Jun 2008 12:31:49 +1000, Paul Blair wrote: > The Victorians will now have an interesting situation. Their system > seems to be slowly going to standard gauge, but their metro system is > broad gauge and 1500 VDC. Shopping for equipment just go a whole lot > harder... The Sydney and Melbourne suburban systems are probably bigger than the rest of the Australian city urban railways combined. Sydney and Melbourne individually are probably bigger than the rest combined. 1500vDC is a common system world wide. The southern half of France is 1500vDC for example. Effectively the only difference between the traction electronics in a 25kV AC train and a 1500v DC train is that the AC train is carrying a transformer. Track gauge and particularly the loading gauge would have a more significant impact.