Re: Impressions of the Gold Coast line

[jjjim <jjjim@bigpond.com>]

im form an electronics backround . sorry to confuse,  I see a chopper as
something creating an AC waveform of different freqency to the mains
50Hertz, (or the same in the case of an inverter for use in your home) .
So inverter / chopper to me,

Rob Kearey wrote:

> David Johnson wrote:
>
> > > Dean all the SMUs run AC traction, and IMU's,  just the smu2's are
> > > slightly differennt choppers,
>
> > I was under the impression that Choppers were used for DC motors.
>
> I think he means inverters.
>
> > David Johnson
>
> --
> Rob K
> http://members.optushome.com.au/mammal