Re: primary solid/tube

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Jim Lux by way of Terry Fritz <twftesla-at-qwest-dot-net>" <jimlux-at-earthlink-dot-net>



> Original poster: "Antonio Carlos M. de Queiroz by way of Terry Fritz
<twftesla-at-qwest-dot-net>" <acmq-at-compuland-dot-com.br>
> > Original poster: "Jim Lux by way of Terry Fritz <twftesla-at-qwest-dot-net>"
> > - intertie between two very dissimilar systems (there's several places
where
> > there's a GW+ link that runs a few hunderd feet.. one's at Itaipu dam
> > (border between Paraguay and Brazil and they use 50 Hz on one side and
60 Hz
> > on the other), another is somewhere in Eel River Canada , where it
> > simplified things.
> > - reliability (2 wires, but if one fails, you can use "ground" as the
other
> > conductor)
>
> I worked on the installation of this system, from Itaipu to Sao Paulo,
> by 1980, doing field work to evaluate what would be the route taken by
> the return current through the ground.
> Railroad tracks and telephone lines in the way had to be interrupted
> at intervals, as the 1000+ A current would prefer to travel trough them.

Pretty nifty.. I went on a tour of the dam in Nov 1994, hoping to see this
stuff, as part of another tour in the area, but the tour was more oriented
at shopping in Paraguay, so the dam tour (which wound up being in
Portuguese) was along the lines of: "And behind that wall are the
generators. Those wires connect to the switchyard..."  I asked about the DC
converter stuff and got a blank look.  Ah well.. at least the eclipse was
cool.