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Analysis and Mitigation of Stray Capacitance Effects in Resistive High-Voltage Dividers

Author

Listed:
  • Jordi-Roger Riba

    (Electrical Engineering Department, Universitat Politècnica de Catalunya, 08222 Terrassa, Spain)

  • Francesca Capelli

    (Department of Research & Development, SBI Connectors España, 08635 Sant Esteve Sesrovires, Spain)

  • Manuel Moreno-Eguilaz

    (Electronic Engineering Department, Universitat Politècnica de Catalunya, 08034 Barcelona, Spain)

Abstract

This work analyzes the effects of the parasitic or stray distributed capacitance to ground in high-voltage environments and assesses the effectiveness of different corrective actions to minimize such effects. To this end, the stray capacitance of a 130 kV RMS high-voltage resistive divider is studied because it can severely influence the behavior of such devices when operating under alternating current or transient conditions. The stray capacitance is calculated by means of three-dimensional finite element analysis (FEA) simulations. Different laboratory experiments under direct current (DC) and alternating current (AC) supply are conducted to corroborate the theoretical findings, and different possibilities to mitigate stray capacitance effects are analyzed and discussed. The effects of the capacitance are important in applications, such as large electrical machines including transformers, motors, and generators or in high-voltage applications involving voltage dividers, conductors or insulator strings, among others. The paper also proves the usefulness of FEA simulations in predicting the stray capacitance, since they can deal with a wide range of configurations and allow determining the effectiveness of different corrective configurations.

Suggested Citation

  • Jordi-Roger Riba & Francesca Capelli & Manuel Moreno-Eguilaz, 2019. "Analysis and Mitigation of Stray Capacitance Effects in Resistive High-Voltage Dividers," Energies, MDPI, vol. 12(12), pages 1-16, June.
    • Handle: RePEc:gam:jeners:v:12:y:2019:i:12:p:2278-:d:239752
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    References listed on IDEAS

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    1. Hosam Alharbi & Muhammad Khalid & Mohammad Abido, 2019. "A Novel Design of Static Electrostatic Generator for High Voltage Low Power Applications Based on Electric Field Manipulation by Area Geometric Difference," Energies, MDPI, vol. 12(5), pages 1-18, February.
    2. Jordi-Roger Riba & Francesca Capelli, 2018. "Analysis of Capacitance to Ground Formulas for Different High-Voltage Electrodes," Energies, MDPI, vol. 11(5), pages 1-19, April.
    3. Jiameng Yang & Wenfang Zhang & Liang Zou & Yali Wang & Youliang Sun & Yingchun Feng, 2019. "Research on Distribution and Shielding of Spatial Magnetic Field of a DC Air Core Smoothing Reactor," Energies, MDPI, vol. 12(5), pages 1-15, March.
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    Cited by:

    1. Alessandro Mingotti & Federica Costa & Lorenzo Peretto & Roberto Tinarelli & Paolo Mazza, 2021. "Modeling Stray Capacitances of High-Voltage Capacitive Dividers for Conventional Measurement Setups," Energies, MDPI, vol. 14(5), pages 1-15, February.
    2. Zhengyun Fang & Yi Luo & Shaolei Zhai & Bin Qian & Yaohua Liao & Lei Lan & Dianlang Wang, 2021. "Temperature Rise Characteristics and Error Analysis of a DC Voltage Divider," Energies, MDPI, vol. 14(7), pages 1-12, March.

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