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Field Test Method and Equivalence Analysis of Delay Characteristics of DC Electronic Current Transformer

Author

Listed:
  • Mengmeng Zhu

    (Electric Power Research Institute of Yunnan Power Grid Co., Ltd., Kunming 650200, China)

  • Hongda Tang

    (Faculty of Electric Power Engineering, Kunming University of Science and Technology, Kunming 650500, China)

  • Zhaolei He

    (Measurement Verification Department of Measurement Center of Yunnan Power Grid Co., Ltd., Kunming 650200, China)

  • Yaohua Liao

    (Electric Power Research Institute of Yunnan Power Grid Co., Ltd., Kunming 650200, China)

  • Biao Tang

    (Electric Power Research Institute of Yunnan Power Grid Co., Ltd., Kunming 650200, China)

  • Qunqun Zhang

    (Faculty of Electric Power Engineering, Kunming University of Science and Technology, Kunming 650500, China)

  • Hongchun Shu

    (Faculty of Electric Power Engineering, Kunming University of Science and Technology, Kunming 650500, China)

  • Yaqi Deng

    (Faculty of Electric Power Engineering, Kunming University of Science and Technology, Kunming 650500, China)

  • Fang Zeng

    (Faculty of Electric Power Engineering, Kunming University of Science and Technology, Kunming 650500, China)

  • Pulin Cao

    (Faculty of Electric Power Engineering, Kunming University of Science and Technology, Kunming 650500, China)

Abstract

DC electronic current transformer is the data source of the system control and protection device, so its measurement delay has always been concerned. In this paper, the DC current transformer is modelled equivalently and the key factors affecting the delay of shunt and the remote module are analyzed. A field test method for the delay characteristics of the DC electronic current transformer is proposed. Moreover, a complex multi-state large current generator and integrated test system are developed. On the basis of the IEC 60044-8 standard transmission protocol, the accuracy of standard signal acquisition with the shunt is better than 0.2%. The maximum output current of the established testing system is 600 A. Based on the field test in an actual HVDC project, transient step and various frequency signal components are applied for analyzing.

Suggested Citation

  • Mengmeng Zhu & Hongda Tang & Zhaolei He & Yaohua Liao & Biao Tang & Qunqun Zhang & Hongchun Shu & Yaqi Deng & Fang Zeng & Pulin Cao, 2023. "Field Test Method and Equivalence Analysis of Delay Characteristics of DC Electronic Current Transformer," Energies, MDPI, vol. 16(15), pages 1-10, July.
    • Handle: RePEc:gam:jeners:v:16:y:2023:i:15:p:5727-:d:1207563
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    References listed on IDEAS

    as
    1. Kun-Long Chen & Ren-Shuo Wan & Yi Guo & Nanming Chen & Wei-Jen Lee, 2017. "A Redundancy Mechanism Design for Hall-Based Electronic Current Transformers," Energies, MDPI, vol. 10(3), pages 1-14, March.
    2. Michal Kaczmarek & Artur Szczęsny & Ernest Stano, 2022. "Operation of the Electronic Current Transformer for Transformation of Distorted Current Higher Harmonics," Energies, MDPI, vol. 15(12), pages 1-10, June.
    3. Donghui Wang & Chunming Liu, 2019. "Combination Optimization Configuration Method of Capacitance and Resistance Devices for Suppressing DC Bias in Transformers," Energies, MDPI, vol. 12(9), pages 1-13, May.
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