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   alt.engineering.electrical      Electrical engineering discussion forum      2,548 messages   

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   Message 2,254 of 2,548   
   Anthony Stewart to Adrian Caspersz   
   Re: Power Factor Correction   
   25 Nov 20 05:47:59   
   
   From: tony.sunnysky@gmail.com   
      
   On Tuesday, 24 November 2020 at 08:47:06 UTC-5, Adrian Caspersz wrote:   
   > On 23/11/2020 18:42, J.B. Wood wrote:    
   >. Would be kind of dangerous I would think. Sincerely,    
   >   
      
      
   I’m thinking about my $25 E, H signal level meter but it’s only 10kHz to   
   3GHz and measures in V/m and uT/m   
      
   Using a dipole antenna loaded with an LC filter tuned  to swamp any RF above   
   10kHz and a large loop antenna with the same, I think it’s possible to   
   measure power factor remotely then aggregate the field measurements to compare   
   with the power studies to    
   determine which load networks will benefit from a low Q Cap loading on a   
   transmission line modelled on Falstad’s with a delay line network simulation.   
      
   AC motors usually draw a bit more than 5 times the rated load current on start   
   up which when unloaded means it’s about 50 times with zero load , so   
   effectively it’s 98% VAR, or 2% of then determine the cyclical nature of   
   motor work during the day and    
   the distribution of loads from steady, variable , start-stop, arc welding ,   
   old fashioned HPS street lamps and determine which of loads will save on   
   maintenance costs with some sort of threshold model.   
      
   The best tools are the one you know how to use and you will wish you knew MB   
   Hydro’s PSTools (?). It I know Falstad’s web simulator really well is   
   capable of good simulations on transmission lines in time or spectral domain.   
      
   Anyways if there was a PO, I could design my idea for a non-contact EH PF   
   tester.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)   

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