Re: 240 volts on tangaras and the 4d set

[David Johnson <trainman@ozemail.com.au>]

Scott Beecham wrote:

> Yup It is exactly the same on at least one of the tangaras up here, I only
> noticed it the other day. I was actually going to ask somebody if it is
> always always powered up and what it would be used for(I'm guessing cleaning
> purposes).

It was installed to run vacuum cleaners, etc.  It is powered by the 1500V
inverter which outputs three phase 415V power to run all auxiliaries n the train
(like A/C, headlights, etc).  The supply is fairly clean and constant, except
when the Static Inverter drops out under heavy braking.  I have done a lot of
work on tangaras with expensive computer equipment plugged in, but we used a UPS
for when the SIV shut down.

--
David Johnson
trainman@ozemail.com.au
http://www.ozemail.com.au/~trainman/