>
>On Fri, 21 Nov 2003 01:39:56 -0800 R.Measures <r@somis.org> writes:
>> >
>> >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.
>
> Probably SCR's now-a-days. See the link below for a typical
>installation.
>
>http://www.hydro.mb.ca/our_facilities/cs_dorsey.shtml
>
** Thanks, Marv. It's amazing that a Si thyristor-valve stack can
switch 500kV at 2kA. This is undoubtedly some serious "QRO". Sylmar
is probably using the same technology.
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