Tom Walker writes in a message to Scott Christensen
 SC> (This formula was driven indelibly into my brain by a University of 
Minneso
 SC> Physics prof that referred to power loss in nearly all 
 TW> resistive cases by SC> calling it "I squared R loss." So, I 
 TW> *did* learn *something* in college!) 
 TW>   If you were paying attention how abpout reviewing a point 
 TW> with me. In Power Transmissions which Like would have the Least 
 TW> Losses and Why, A 500,000 Volt 60 Hertz System or a 500,000 
 TW> Volt Direct Current system.  Back in my fuzzy brain I seem 
 TW> to rembember something about there being less losses in a Very 
 TW> High voltage DC system but can't rembember exacticaly why. 
See my last message.  Yes, DC would be better to get from here to there on a 
transmission line because you don't have the capacitive losses along the 
length of the line.  *HOWEVER* the efficiency of the up/down conversion is so 
much greater with transformers than it is with any DC conversion scheme that 
it makes the AC transmission of power much more practical.
  
Once again, if you want more tutorial, contact me via netmail.
 
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