Title :
Testing the performance of three-phase induction watthour meters in the presence of harmonic distortion
Author :
Girgis, Adly A. ; Baldwin, Thomas L. ; Makram, Elham B. ; Fortson, Hoke S., Jr.
Author_Institution :
Dept. of Electr. & Comput. Eng., Clemson Univ., SC, USA
Abstract :
Computer-based testing of a three-phase induction watthour meter in the presence of harmonic distortion is reported. Two three-phase harmonic generators produce the distorted current and voltage waveforms. Each waveform consists of prespecified harmonic magnitude and phase. Therefore, balanced or unbalanced conditions can be simulated in the testing. A fiber optic sensor is designed to convert the rotation of the disk of the meter into digital signals to be stored in an IBM PC/AT. A data acquisition system transfers the samples of current and voltage waveforms to compute the power and energy for comparison. Presented are: the computer-based harmonic generator facilities for testing, the testing procedure, and the impact of the different harmonics magnitude and phase angle on the meter´s registration error
Keywords :
automatic test equipment; data acquisition; fibre optic sensors; harmonics; microcomputer applications; power engineering computing; watthour meters; IBM PC/AT; computer based testing; data acquisition system; distorted current; distorted voltage; fiber optic sensor; harmonic distortion; performance testing; three-phase induction watthour meters; Computational modeling; Harmonic distortion; Induction generators; Optical design; Optical distortion; Optical fiber sensors; Optical harmonic generation; Testing; Voltage; Watthour meters;
Journal_Title :
Industry Applications, IEEE Transactions on
