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|    alt.engineering.electrical    |    Electrical engineering discussion forum    |    2,547 messages    |
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|    Message 2,255 of 2,547    |
|    Anthony Stewart to Anthony Stewart    |
|    Re: Power Factor Correction    |
|    25 Nov 20 05:56:07    |
      From: tony.sunnysky@gmail.com              On Wednesday, 25 November 2020 at 08:48:01 UTC-5, Anthony Stewart wrote:       > 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.              Brain fart on the motor’s PF from startup to no load to full load , that’s       just the real power change , anyways a portable DSO in XY mode for HE fields ,       calibrated ought to measure the average 3 phase imbalance which may be       accurate enuf to estimate        the sum with a near field non contact set of measurements, measured in three       1km spacing where the phases rotate.              --- SoupGate-Win32 v1.05        * Origin: you cannot sedate... all the things you hate (1:229/2)    |
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