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Abstract
This paper presents voltage harmonic transfer accuracy problems through voltage transformers which are used in power quality monitoring systems in medium and high voltage grids. A simplified lumped parameters circuit model of the voltage transformer is proposed and verified by simulation and experimental investigations. A number voltage transformers typically used in medium voltage grid has been tested in the conducted disturbances frequency range up to 30 MHz. The obtained results prove that broadband voltage transfer function of the voltage transformer usually exhibits various irregularities, especially in high frequency range, which are primarily associated with windings' parasitic capacitances.
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- Category:
- Conference activity
- Type:
- publikacja w wydawnictwie zbiorowym recenzowanym (także w materiałach konferencyjnych)
- Title of issue:
- XXI International Conference on Electromagnetic Disturbances, Białystok 28 - 30 September, 2011 strony 161 - 164
- Language:
- English
- Publication year:
- 2011
- Bibliographic description:
- Łuszcz J.: Voltage Transients Transfer over Medium Voltage Instrument Transformers// XXI International Conference on Electromagnetic Disturbances, Białystok 28 - 30 September, 2011/ ed. Białystok University of Technology, Faculty of Electrical Engineering. Białystok: , 2011, s.161-164
- Verified by:
- Gdańsk University of Technology
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