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Design of a High-Precision Self-Balancing Potential Transformer Calibrator

Author

Listed:
  • Mengjia Li

    (School of Electrical and Information Engineering, Zhengzhou University, Zhengzhou 450001, China)

  • Feng Zhou

    (China Electric Power Research Insititute, Wuhan 430070, China)

  • Jiandong Jiang

    (School of Electrical and Information Engineering, Zhengzhou University, Zhengzhou 450001, China)

  • Hao Liu

    (China Electric Power Research Insititute, Wuhan 430070, China)

  • Bo Xiong

    (China Electric Power Research Insititute, Wuhan 430070, China)

  • Xue Wang

    (China Electric Power Research Insititute, Wuhan 430070, China)

  • Teng Yao

    (China Electric Power Research Insititute, Wuhan 430070, China)

Abstract

Potential transformers are vital for measuring and protecting the power grid. Their accuracy and reliability directly impact the stability and security of the power system. To address the issues with traditional high-precision potential transformer calibrators, such as cumbersome operation and low efficiency, a high-precision potential transformer calibrator has been developed. The calibrator is based on an embedded system architecture of FPGA and ARM. It uses a high-precision current comparator along with feedback control technology. By monitoring and adjusting the error feedback voltage, it can perform the automated calibration of potential transformers with an accuracy class of 0.0001. The measurement ranges from 0.00001% to 200.0%. This study can be adapted to meet the development needs of modern digital measurement systems.

Suggested Citation

  • Mengjia Li & Feng Zhou & Jiandong Jiang & Hao Liu & Bo Xiong & Xue Wang & Teng Yao, 2024. "Design of a High-Precision Self-Balancing Potential Transformer Calibrator," Energies, MDPI, vol. 17(17), pages 1-18, August.
    • Handle: RePEc:gam:jeners:v:17:y:2024:i:17:p:4230-:d:1463099
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