[Amps] Benefits of 3-phase power?

[R.Measures]

>On Wed, 19 Nov 2003 07:12:46 -0800, R.Measures <r at somis.org> wrote:
>
>>California imports hydro-power from the North with a 1,000,000VDC, 
>>center-tap grounded transmission line.  In Sylmar, there's a rather 
>>largish DC to AC inverter.
>
>_________________________________________________________
>
>How do they convert such high DC voltages to AC?  Thyratrons or
>something similar?
>
**  Beats me, Bill, but stacked hydrogen thyratrons sounds likely.  When 
the Sylmar inverter fired up for the first time, the RFI problem was 
cataclysmic.  Screen-shielding eventually solved the problem.