> How about 60 megaWatts!

> http://www.res-ltd.com/wind-farms/wf-ainsworth.htm

How about over a GigaWatt?. It'll be a number of inverters - but not a 
vast number. Any DC link driving a mains grid must convert the DC back 
to 50 Hz AC. As noted, out system is now rated at over a GW. Each 
converter can do AC-DC or DC-AC depending on control phasing. I'm sure 
Gargoyle knows.

Laaaaaaarge (?thyratron?) "tubes" used. This is no place for them 
wimpy semiconductor devices.  AFAIR they are rated to handle 2 or 
maybe 3 successive "commutation failures". That's when the tube 
doesn't turn off when it should and DC link energy flows into the 
inverter when it should be blocking. I imagine you can *feel* a single 
cycle commutation failure happen from some distance away. If you ever 
got more than the 2 or 3 rated sequentially you'd want to BE some 
distance away.



        Russell 

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