IDEAS home Printed from https://ideas.repec.org/a/gam/jeners/v14y2021i16p5124-d617632.html
   My bibliography  Save this article

Study on Evaluation Method of Impulse Dispersion Performance of Grounding Device Using X-ray Imagining System

Author

Listed:
  • Xiaoyan Han

    (State Grid Sichuan Electric Power Company, Chengdu 610041, China)

  • Donghui Luo

    (State Grid Sichuan Electric Power Company, Chengdu 610041, China
    Department of Electrical Engineering, Tsinghua University, Beijing 100084, China)

  • Xin Zhang

    (State Key Laboratory of Power Transmission Equipment and System Security and New Technology, Department of Electrical Engineering, Chongqing University, Chongqing 400044, China)

  • Yongxing Cao

    (State Grid Sichuan Electric Power Company, Chengdu 610041, China)

  • Yu Zhang

    (State Grid Sichuan Electric Power Company, Chengdu 610041, China)

  • Gege Ban

    (State Key Laboratory of Power Transmission Equipment and System Security and New Technology, Department of Electrical Engineering, Chongqing University, Chongqing 400044, China)

Abstract

When the lightning current enters the ground through the grounding system, the impulse dispersion performance can be observed by the phenomenon of soil spark discharge, which is fundamentally determined by the nearby soil. At present, engineers use an empirical formula to convert the soil spark discharge to the impulse coefficient of impulse grounding resistance. Therefore, there is no available quantitative analysis method to evaluate soil impulse dispersion performance. To solve this problem, this paper proposes an evaluation method for the impulse discharge efficiency of soil by using X-ray images, define V I as the parameter, which is the ratio of the volume of the discharge area to the peak current. Then, the rationality and validity of the method are verified. Finally, the variation rules of impulse discharge efficiency are analyzed in different soils. Results show that the V I can reflect the change rules of impulse dispersion performance more clearly under different soil conditions, and this parameter provides a new idea for enhancing the impulse dispersion performance of soil near the grounding electrode.

Suggested Citation

  • Xiaoyan Han & Donghui Luo & Xin Zhang & Yongxing Cao & Yu Zhang & Gege Ban, 2021. "Study on Evaluation Method of Impulse Dispersion Performance of Grounding Device Using X-ray Imagining System," Energies, MDPI, vol. 14(16), pages 1-16, August.
  • Handle: RePEc:gam:jeners:v:14:y:2021:i:16:p:5124-:d:617632
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/1996-1073/14/16/5124/pdf
    Download Restriction: no

    File URL: https://www.mdpi.com/1996-1073/14/16/5124/
    Download Restriction: no
    ---><---

    References listed on IDEAS

    as
    1. Donghui Luo & Yongxing Cao & Yu Zhang & Shijun Xie & Chenmeng Zhang & Shuping Cao, 2021. "Study on Structural Parameters and Analysis Method of Soil Successive Impulse Discharge Channel," Energies, MDPI, vol. 14(4), pages 1-17, February.
    Full references (including those not matched with items on IDEAS)

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Nur Alia Farina Mohamad Nasir & Mohd Zainal Abidin Ab Kadir & Miszaina Osman & Muhamad Safwan Abd Rahman & Ungku Anisa Ungku Amirulddin & Mohd Solehin Mohd Nasir & Nur Hazirah Zaini & Nik Hakimi Nik A, 2021. "Influence of Lightning Current Parameters and Earthing System Designs on Tower Footing Impedance of 500 kV Lines," Energies, MDPI, vol. 14(16), pages 1-19, August.
    2. Tomasz Kossowski & Paweł Szczupak, 2023. "Laboratory Tests of the Resistance of an Unmanned Aerial Vehicle to the Normalized near Lightning Electrical Component," Energies, MDPI, vol. 16(13), pages 1-18, June.

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:gam:jeners:v:14:y:2021:i:16:p:5124-:d:617632. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: MDPI Indexing Manager (email available below). General contact details of provider: https://www.mdpi.com .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.