Analysis of capacitive currents in the winding of a high voltage measuring autotransformer

Authors

  • Володимир Олександрович Бржезицький National Technical University of Ukraine «Kyiv Polytechnic Institute», 37, Prospect Peremohy, 03056, Kyiv-56, Ukraine https://orcid.org/0000-0002-9768-7544
  • Ярослав Олександрович Гаран National Technical University of Ukraine «Kyiv Polytechnic Institute», 37, Prospect Peremohy, 03056, Kyiv-56, Ukraine https://orcid.org/0000-0003-3242-9218

DOI:

https://doi.org/10.15587/2312-8372.2016.74694

Keywords:

voltage autotransformer, capacitive current, voltage drop, interlayer capacitance

Abstract

The paper analyzed the distribution of capacitive currents in the winding of measuring high-voltage autotransformer at its operating frequency 50 (60) Hz. It is revealed that idling high-voltage autotransformer at significant nominal dividing coefficient these currents can acquire essential values against the current idling, which can affect the accuracy of large-scale conversion of high-voltage measuring autotransformers. The paper presents an approach to account values of interlayer capacitive currents in the windings of high-voltage autotransformers to clarify the distribution of voltage on their low-voltage (output) winding parts. It is shown that the distribution of capacitive currents significantly different to the first, last and middle layers of windings that must be considered when designing the windings of high-voltage autotransformers and calculate the number of turns in the respective high-voltage and low-voltage parts of windings. This analysis is particularly important for the development of standard measurement tools using high-voltage autotransformer scale transformation.

Author Biographies

Володимир Олександрович Бржезицький, National Technical University of Ukraine «Kyiv Polytechnic Institute», 37, Prospect Peremohy, 03056, Kyiv-56

Doctor of Technical Sciences, Professor, Acting Head of Department

Department of High Voltage Engineering and Electrophysics

Ярослав Олександрович Гаран, National Technical University of Ukraine «Kyiv Polytechnic Institute», 37, Prospect Peremohy, 03056, Kyiv-56

Engineer

Department of High Voltage Engineering and Electrophysics

References

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Published

2016-07-26

How to Cite

Бржезицький, В. О., & Гаран, Я. О. (2016). Analysis of capacitive currents in the winding of a high voltage measuring autotransformer. Technology Audit and Production Reserves, 4(1(30), 70–76. https://doi.org/10.15587/2312-8372.2016.74694

Issue

Vol. 4 No. 1(30) (2016): Mechanical engineering and machine building. Energy, energy-saving technologies and equipment

Section

Electrical Engineering and Industrial Electronics: Original Research

License

Copyright (c) 2016 Ярослав Олександрович Гаран, Володимир Олександрович Бржезицький

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