G - Physics – 01 – R
Patent
G - Physics
01
R
324/70
G01R 19/00 (2006.01) G01R 21/00 (2006.01) G01R 29/04 (2006.01)
Patent
CA 1302500
TITLE INSTRUMENT TO MEASURE THE ERRORS OF APPARENT POWER METERS INVENTORS Réjean J. Arseneau Piotr S. Filipski John J. Zelle ABSTRACT OF THE DISCLOSURE An instrument to determine, under actual field condi- tions, which type of VA demand meters are most appropriate for a particular consumer. The type of electrical load that the consumer places on an electrical supply system can introduce harmonics and phase distortion in the system resulting in VA meters producing incorrect readings. These VA meters are intended to measure the true apparent power S which is defined as S = Vrms X Irms but, are generally designed to operate according to one of the following approximate formula: (1) S' = Vrect X Irect X (1.11)2 and (2) S" = Image where P is the active power and Q the reactive power. The instrument contains a circuit to measure the rms values of the voltage and current waveforms from which the true apparent power S can be obtained as well as circuits to determine the value S' and S" according Abstract (Cont.) to the two approximate formula from which error signals e1 and e2 can be determined to indicate the type of errors that can be expected from VA meters designed to operate according to the two approximate formula and, as a result, determine which type of VA meter is most appropriate for a particular consumer.
582058
Arseneau Rejean J.
Filipski Piotr S.
Zelle John J.
Arseneau Rejean J.
Filipski Piotr S.
National Research Council Of Canada
Szereszewski Juliusz M.sc.
Zelle John J.
LandOfFree
Instrument to measure the errors of apparent power meters does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Instrument to measure the errors of apparent power meters, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Instrument to measure the errors of apparent power meters will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1187069