From: kh@pnnnnx.kom   
      
   bob   wrote:   
      
   >> As I understand it, the amount of AC power that can be transmitted at   
   >> a given voltage is inversely proportional to the voltage.  Thus a   
   >> train that could get the required power at 15 KV 16.7 Hz could not get   
   >> it at 15 KV 50 Hz.   
   >   
   >I don't follow. 15 kV is the same voltage at 50 Hz as it is at 16.7 Hz or   
   >any other frequency.   
      
   I guess the previous poster used the wrong word, sort of a typo.   
   Probably that second "voltage" should be "frequency".  That is,   
   "...the amount of AC power that can be transmitted at a given voltage   
   is inversely proportional to the frequency."   
      
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