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INFLUENCE OF HARMONIC DISTORTION CAUSED BY CONVERTERS ON STANDARD MEASURING INSTRUMENTS
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| Author(s) |
Vladimir A. Katic; Radojle M. Radetic |
| Abstract |
The influence of harmonic distortion caused by converters on standard measuring instruments was observed. It was concluded that harmonics diminished the accuracy of measurement. The original indirect method for determination of that influence was developed. The method consists of determination of harmonic characteristic of instrument, recording of harmonic spectrum of current and/or voltage and computer treatment of results. It gives network harmonic data, relative and class error of instrument and accurate value. The method is convenient for networks with "rich" harmonic contents as a result of multiconverter operation. Two examples of the methode procedure are presented: determination of ampermeter error and determination of induction watthour meter error. Both ampermeter and induction watthour meter show negative error as a result of the presence of harmonics in a measured value. |
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| Filename: | Unnamed file |
| Filesize: | 3.024 MB |
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| Type |
Members Only |
| Date |
Last modified 2021-02-08 by System |
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