Engine Voltage

["Deano" <dsma@pigpond.com>]

I went for a spin in an 81 class (Goulburn-Wollongong and return) the other
day and being curious was wondering if anyone can fill me in on the
electrics. I noted the max amps was up to 1200 with a continuous figure
somewhere near 800. I understand these locos produce about 2400kw which at
1200 amps would equate to 2000 volts DC. A voltage this high would seem to
carry a significant risk of arcing and I was wondering if this really is a
problem or have I got the numbers wrong. I learned from the driver that the
engine is connected to an AC generator which is then rectified to a DC
voltage but he was not sure what it was. All in all it was a sensational
experience and the escarpment was nothing short of spectacular in either
direction. I have some electrical qualifications and am just curious, was
wondering if anyone is familiar with the numbers applicable to these locos.
regards Deano