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   alt.energy.homepower      Electrical part of living of the grid      2,576 messages   

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   Message 1,332 of 2,576   
   Jim Wilkins to Mho   
   Re: 'Energy saver' power factoring?   
   31 May 12 16:11:20   
   
   From: muratlanne@gmail.com   
      
   "Mho"  wrote in message   
   news:n7Nxr.1236$Xe4.595@newsfe17.iad...   
   > Put the KAW first.   
   >   
   > We tested four of these (KaW) units against NBS traceable kWh   
   > standards (0.1% max error..correctable to 0.02% CF) and they were   
   > right on the money, surprisingly enough. They were checked at the   
   > usual kWH meter standards = 100% and 50% PF and 2/3  and 10% scale,   
   > but harmonic response was not testable, at that time.   
   >   
   > Very impressive for a $20 gadget.   
      
   They don't have to be that accurate for battery+inverter testing as   
   long as they give a repeatable reading proportional to remaining   
   capacity. The power draw of my laptop varies almost 2:1 depending on   
   what it's doing, so run times don't tell everything.   
      
   jsw   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)   

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