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Temperature Rise Characteristics and Error Analysis of a DC Voltage Divider

Author

Listed:
  • Zhengyun Fang

    (Faculty of Land Resource Engineering, Kunming University of Science and Technology, Kunming 650093, China)

  • Yi Luo

    (Institute of Metrology Technology, Electric Power Research Institute, CSG, Guangzhou 510663, China)

  • Shaolei Zhai

    (Electric Power Research Institute of Yunnan Power Grid Co., Ltd., Kunming 650217, China)

  • Bin Qian

    (Institute of Metrology Technology, Electric Power Research Institute, CSG, Guangzhou 510663, China)

  • Yaohua Liao

    (Electric Power Research Institute of Yunnan Power Grid Co., Ltd., Kunming 650217, China)

  • Lei Lan

    (School of Electrical Engineering and Automation, Wuhan University, Wuhan 430072, China)

  • Dianlang Wang

    (Institute of Metrology Technology, Electric Power Research Institute, CSG, Guangzhou 510663, China)

Abstract

Measurement accuracy is an important performance indicator for high-voltage direct current (HVDC) voltage dividers. The temperature rise effect for a HVDC voltage divider’s internal resistance has an adverse effect on measurement accuracy. In this paper, by building a solid model of a DC voltage divider, the internal temperature rise characteristic and error caused by the temperature rise in a resistance voltage divider were theoretically simulated. We found that with the increase in height and working time, the internal temperature of the voltage divider increased. The results also showed that the lowest temperature was near the lower flange and the highest temperature was near the upper flange in the middle of the voltage divider. The error caused by the temperature rise increased first and then decreased gradually with divider height, increasing with its working time. The measurement error caused by the internal temperature difference in steady state reached a maximum of 158.4 ppm. This study provides a theoretical basis to determine the structure and accuracy improvement for a resistive voltage divider, which is helpful for the selection of components and the optimization of the heat dissipation structure.

Suggested Citation

  • 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.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:7:p:1914-:d:527018
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    References listed on IDEAS

    as
    1. 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.
    2. Andrej Kapjor & Peter Durcansky & Martin Vantuch, 2020. "Effect of Heat Source Placement on Natural Convection from Cylindrical Surfaces," Energies, MDPI, vol. 13(17), pages 1-13, August.
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    Cited by:

    1. Yi Luo & Bin Guo & Bin Qian & Lijuan Xu & Fan Zhang & Fusheng Li & Xingxing Feng, 2021. "Method to Evaluate the Resistance–Capacitance Voltage Divider and Uncertainty Analysis," Energies, MDPI, vol. 14(22), pages 1-12, November.

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