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Corona Shielding of Current Path Features of Air Insulated High Voltage Disconnectors and Earthing Switches

Received: 12 January 2022    Accepted: 4 February 2022    Published: 16 February 2022
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Abstract

The radio interference voltage occurring as so-called corona effects on current paths of air insulated high voltage disconnectors and earthing switches will be introduced and the need, the effect, and the realization of accordingly corona shielding of current path features of air insulated high voltage disconnectors and earthing switches will be discussed. Both is included, the requirements as per international standards and requirements by customers beyond international standards, as those are the principal motivation for investigating in the effects of radio interference voltage and its limitation. The reasons for corona effects and the shielding functionality for reduction of those effects will be elaborated. Challenges and limits of different types of shielding will be described, which covers the mounting and its items, and emphasizes not only mechanical stress risks, but also the possible complexity of potentially necessary shielding arrangements. Also, the type testing for the corona effects will be mentioned and includes aspects of the market or by customers beyond IEC standard needs, so that not only keeping limits is important, but also to understand inception and deception. Additionally, numerical methods to solve the necessary field calculations of corona effects and effects of shielding will be described. Finally practical examples will be given for different corona shielding applications on current paths of center break disconnectors, which includes details for additional functionality of corona shielding providing the possibility to cover additional product requirements and therefore increasing the product marketability without increasing material consumption of the product. In conclusion the benefit of sophisticated investigation is highlighted and intends to promote the same, overcoming cost and efforts hurdles and best practices based on application experiences only.

Published in American Journal of Science, Engineering and Technology (Volume 7, Issue 1)
DOI 10.11648/j.ajset.20220701.12
Page(s) 8-14
Creative Commons

This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2024. Published by Science Publishing Group

Keywords

Disconnector, Current Path, Contact System, Components Extremities, Corona, Corona Shielding, Radio Interference Voltage

References
[1] M. Rohmann, D. Schräder, “Swicthing Capability of Air-Insulated High Voltage Disconnectors by Active Add-On Features”, ASTESJ Volume 6, Issue 1, Page No 43-48, 2021, ISSN 2415-6698.
[2] M. Rohmann, S. Challa, G. Kurra, S. Mogatala and D. Schraeder, "Switching Capability of Air Insulated High Voltage Disconnectors," 2019 International Conference on High Voltage Engineering and Technology (ICHVET), 2019, pp. 1-4, doi: 10.1109/ICHVET.2019.8724315.
[3] IEC 62271-102, High-voltage switchgear and controlgear – Part 102: Alternating current disconnectors and earthing switches, Edition 2.0, 2018.
[4] IEC 62271-1, High-voltage switchgear and controlgear – Part 1: Common specifications for alternating current switchgear and controlgear, Edition 2.0, 2017.
[5] IEC 17025, General requirements for the competence of testing and calibration laboratories, 3rd Edition, 2017.
[6] IEEE Std. 430TM, IEEE Standard Procedures for the Measurement of Radio Noise from Overhead Power Lines and Substations, 2017, ISBN 978-1-5044-3965-3.
[7] CIGRE Technical Brochure No. 511: Final Report of the 2004 – 2007 International Enquiry on Reliability of High Voltage Equipment, Part 3 – Disconnectors and Earthing Switches, 2012.
[8] Sunil S Rao, “Switchgear Protection and Power Systems (Theory, Practive and Solved Problems)”, Khanna Publishers, 2008.
[9] M. Rohmann, “Analysis of Assembly Times for a Gas-Insulated High Voltage Switchgear on the Level of Components”, M. Sc. Thesis with Siemens AG at FernUniversitaet Hagen, 2008.
[10] P. J. Moore, I. E. Portugues and I. A. Glover, "Radiometric location of partial discharge sources on energized high-Voltage plant," in IEEE Transactions on Power Delivery, vol. 20, no. 3, pp. 2264-2272, July 2005, doi: 10.1109/TPWRD.2004.843397.
[11] E. Kuffel, W. S. Zaengl and J. Kuffel, “High Voltage Engineering Fundamentals”, published by Butterworth-Heinemann, Great Britain, 2000, ISBN 978-0-7506-3634-6.
[12] Helmut Lindner, Dr. Harry Brauer, Prof. Dr. Constants Lehmann, “Pocket Book of Electro-Technics and Electronics”, Fachbuchverlag Leipzig, 1999, ISBN 3-446-21056-3.
[13] Gerd Balzer, Bernhard Boehle, Kurt Haneke, Hans Georg Kaiser, Rolf Pöhlmann, Wolfgang Tettenborn, Gerhard Voß, „Substations “, 9th ed., Cornelsen Verlag Schwann-Giradet Duesseldorf, 1992, ISBN 3-464-48233-2.
[14] Harrold R. T., “Acoustical Techniques for Detecting and Locating Electrical Discharges”, “Corona Measurement and Interpretation” ASTM Engineering Dielectrics Volume, 1979, Page No 327-408, doi: 10.1520/STP669-EB.
[15] Prof. Fleck, P. Kulik, “High and Low Voltage Substations”, Verlag W. Girardet Essen, 1975, ISBN 3-7736-0262-6.
Cite This Article
  • APA Style

    Mariusz Rohmann, Dirk Schräder. (2022). Corona Shielding of Current Path Features of Air Insulated High Voltage Disconnectors and Earthing Switches. American Journal of Science, Engineering and Technology, 7(1), 8-14. https://doi.org/10.11648/j.ajset.20220701.12

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    ACS Style

    Mariusz Rohmann; Dirk Schräder. Corona Shielding of Current Path Features of Air Insulated High Voltage Disconnectors and Earthing Switches. Am. J. Sci. Eng. Technol. 2022, 7(1), 8-14. doi: 10.11648/j.ajset.20220701.12

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    AMA Style

    Mariusz Rohmann, Dirk Schräder. Corona Shielding of Current Path Features of Air Insulated High Voltage Disconnectors and Earthing Switches. Am J Sci Eng Technol. 2022;7(1):8-14. doi: 10.11648/j.ajset.20220701.12

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  • @article{10.11648/j.ajset.20220701.12,
      author = {Mariusz Rohmann and Dirk Schräder},
      title = {Corona Shielding of Current Path Features of Air Insulated High Voltage Disconnectors and Earthing Switches},
      journal = {American Journal of Science, Engineering and Technology},
      volume = {7},
      number = {1},
      pages = {8-14},
      doi = {10.11648/j.ajset.20220701.12},
      url = {https://doi.org/10.11648/j.ajset.20220701.12},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajset.20220701.12},
      abstract = {The radio interference voltage occurring as so-called corona effects on current paths of air insulated high voltage disconnectors and earthing switches will be introduced and the need, the effect, and the realization of accordingly corona shielding of current path features of air insulated high voltage disconnectors and earthing switches will be discussed. Both is included, the requirements as per international standards and requirements by customers beyond international standards, as those are the principal motivation for investigating in the effects of radio interference voltage and its limitation. The reasons for corona effects and the shielding functionality for reduction of those effects will be elaborated. Challenges and limits of different types of shielding will be described, which covers the mounting and its items, and emphasizes not only mechanical stress risks, but also the possible complexity of potentially necessary shielding arrangements. Also, the type testing for the corona effects will be mentioned and includes aspects of the market or by customers beyond IEC standard needs, so that not only keeping limits is important, but also to understand inception and deception. Additionally, numerical methods to solve the necessary field calculations of corona effects and effects of shielding will be described. Finally practical examples will be given for different corona shielding applications on current paths of center break disconnectors, which includes details for additional functionality of corona shielding providing the possibility to cover additional product requirements and therefore increasing the product marketability without increasing material consumption of the product. In conclusion the benefit of sophisticated investigation is highlighted and intends to promote the same, overcoming cost and efforts hurdles and best practices based on application experiences only.},
     year = {2022}
    }
    

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    T1  - Corona Shielding of Current Path Features of Air Insulated High Voltage Disconnectors and Earthing Switches
    AU  - Mariusz Rohmann
    AU  - Dirk Schräder
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    DO  - 10.11648/j.ajset.20220701.12
    T2  - American Journal of Science, Engineering and Technology
    JF  - American Journal of Science, Engineering and Technology
    JO  - American Journal of Science, Engineering and Technology
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    PB  - Science Publishing Group
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    UR  - https://doi.org/10.11648/j.ajset.20220701.12
    AB  - The radio interference voltage occurring as so-called corona effects on current paths of air insulated high voltage disconnectors and earthing switches will be introduced and the need, the effect, and the realization of accordingly corona shielding of current path features of air insulated high voltage disconnectors and earthing switches will be discussed. Both is included, the requirements as per international standards and requirements by customers beyond international standards, as those are the principal motivation for investigating in the effects of radio interference voltage and its limitation. The reasons for corona effects and the shielding functionality for reduction of those effects will be elaborated. Challenges and limits of different types of shielding will be described, which covers the mounting and its items, and emphasizes not only mechanical stress risks, but also the possible complexity of potentially necessary shielding arrangements. Also, the type testing for the corona effects will be mentioned and includes aspects of the market or by customers beyond IEC standard needs, so that not only keeping limits is important, but also to understand inception and deception. Additionally, numerical methods to solve the necessary field calculations of corona effects and effects of shielding will be described. Finally practical examples will be given for different corona shielding applications on current paths of center break disconnectors, which includes details for additional functionality of corona shielding providing the possibility to cover additional product requirements and therefore increasing the product marketability without increasing material consumption of the product. In conclusion the benefit of sophisticated investigation is highlighted and intends to promote the same, overcoming cost and efforts hurdles and best practices based on application experiences only.
    VL  - 7
    IS  - 1
    ER  - 

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Author Information
  • Research and Development Querétaro, Siemens Energy S. de R.L. de C.V., Querétaro, México

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