Tower impulse grounding resistance measurement based on multiple frequency impedance
Abstract Tower impulse grounding resistance is important for judging the lightning protection performance of transmission lines. Therefore, it is significant to accurately measure the tower impulse grounding resistance. Existing measurement methods mainly contain the real‐type test method and the im...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2023-08-01
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| Series: | IET Generation, Transmission & Distribution |
| Subjects: | |
| Online Access: | https://doi.org/10.1049/gtd2.12876 |
| _version_ | 1827879159510073344 |
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| author | Yihua Dan Ruixuan Zhang Yongye Wu Yiqiao Li Xuement Wang Jian Yang |
| author_facet | Yihua Dan Ruixuan Zhang Yongye Wu Yiqiao Li Xuement Wang Jian Yang |
| author_sort | Yihua Dan |
| collection | DOAJ |
| description | Abstract Tower impulse grounding resistance is important for judging the lightning protection performance of transmission lines. Therefore, it is significant to accurately measure the tower impulse grounding resistance. Existing measurement methods mainly contain the real‐type test method and the impulse coefficient method. However, the real‐type test method requires heavy and complex excitation and measuring equipment, which is difficult to be used in a practical environment. The impulse coefficient method adopts the empirical equations, which could have large measurement errors in different environments. To solve the above problems, this paper studies a novel impulse grounding resistance measurement method (IGRMM) based on multiple frequency impedance. Spectrum characteristics of typical lightning currents and the calculation method of impulse grounding resistance of grounding electrodes are studied, the IGRMM is proposed. Finally, a case study and on‐site tests are carried out. The results show that the proposed IGRMM can accurately obtain the impulse grounding resistance by measuring grounding impedance at a few frequency points, which helps accurate and convenient evaluation of impulse grounding performance in practical environments and lightning protection performance of the power transmission systems. |
| first_indexed | 2024-03-12T18:01:47Z |
| format | Article |
| id | doaj.art-bd97c69d1baa41b688e9b2ebf0b65915 |
| institution | Directory Open Access Journal |
| issn | 1751-8687 1751-8695 |
| language | English |
| last_indexed | 2024-03-12T18:01:47Z |
| publishDate | 2023-08-01 |
| publisher | Wiley |
| record_format | Article |
| series | IET Generation, Transmission & Distribution |
| spelling | doaj.art-bd97c69d1baa41b688e9b2ebf0b659152023-08-02T09:58:22ZengWileyIET Generation, Transmission & Distribution1751-86871751-86952023-08-0117153488350010.1049/gtd2.12876Tower impulse grounding resistance measurement based on multiple frequency impedanceYihua Dan0Ruixuan Zhang1Yongye Wu2Yiqiao Li3Xuement Wang4Jian Yang5Department of Electronic Engineering Tsinghua University Beijing ChinaInstitute of Economics and Technology of State Grid Chongqing Electric Power Company Chongqing ChinaState Grid Sichuan Electric Power Company Chengdu Power Supply Company Sichuan Province ChinaState Grid Shaanxi Electric Power Company Limited Xi'an ChinaState Key Laboratory of Power Transmission Equipment & System Security and New Technology Chongqing University Chongqing ChinaDepartment of Electronic Engineering Tsinghua University Beijing ChinaAbstract Tower impulse grounding resistance is important for judging the lightning protection performance of transmission lines. Therefore, it is significant to accurately measure the tower impulse grounding resistance. Existing measurement methods mainly contain the real‐type test method and the impulse coefficient method. However, the real‐type test method requires heavy and complex excitation and measuring equipment, which is difficult to be used in a practical environment. The impulse coefficient method adopts the empirical equations, which could have large measurement errors in different environments. To solve the above problems, this paper studies a novel impulse grounding resistance measurement method (IGRMM) based on multiple frequency impedance. Spectrum characteristics of typical lightning currents and the calculation method of impulse grounding resistance of grounding electrodes are studied, the IGRMM is proposed. Finally, a case study and on‐site tests are carried out. The results show that the proposed IGRMM can accurately obtain the impulse grounding resistance by measuring grounding impedance at a few frequency points, which helps accurate and convenient evaluation of impulse grounding performance in practical environments and lightning protection performance of the power transmission systems.https://doi.org/10.1049/gtd2.12876impulse grounding resistancelightning protectionmeasurement methodsmultiple frequency impedance |
| spellingShingle | Yihua Dan Ruixuan Zhang Yongye Wu Yiqiao Li Xuement Wang Jian Yang Tower impulse grounding resistance measurement based on multiple frequency impedance IET Generation, Transmission & Distribution impulse grounding resistance lightning protection measurement methods multiple frequency impedance |
| title | Tower impulse grounding resistance measurement based on multiple frequency impedance |
| title_full | Tower impulse grounding resistance measurement based on multiple frequency impedance |
| title_fullStr | Tower impulse grounding resistance measurement based on multiple frequency impedance |
| title_full_unstemmed | Tower impulse grounding resistance measurement based on multiple frequency impedance |
| title_short | Tower impulse grounding resistance measurement based on multiple frequency impedance |
| title_sort | tower impulse grounding resistance measurement based on multiple frequency impedance |
| topic | impulse grounding resistance lightning protection measurement methods multiple frequency impedance |
| url | https://doi.org/10.1049/gtd2.12876 |
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