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Resistance Reduction Scheme for Tower Grounding with Conductive Cement

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Abstract

The construction conditions of transmission lines are becoming more and more difficult. It is necessary to find new ways to reduce the grounding resistance of poles and towers at high soil resistivity and small construction area. Conductive cement samples with graphite, stainless steel fibers, and their mixtures as conductive phases materials were prepared, the resistivity, flexural strength and compressive strength were tested, compared and analyzed. The graphite and stainless steel fiber conductive cement with better comprehensive performance was selected out for tower grounding. The application schemes of conductive cement for tower grounding were designed and compared, the partial wrapping scheme was selected and its application methods under different soil resistivity was analyzed. The analysis results can provide theoretical basis and guidance for the application of conductive cement in transmission tower grounding, the feasibility of scheme is proved by the field application.

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Acknowledgements

This work was supported by the State Grid Jiangxi Electric Power Co., Ltd under Grant No. 52182018000T.

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Authors and Affiliations

  1. School of Electrical and Automation Engineering, East China Jitaotong University, Nanchang, 330013, Jiangxi Province, China

    Li Lun, Xing Wang, Fen Lan & Hongbo Cheng

  2. State Grid Jiangxi Electric Power Co., Ltd., Electric Power Research Institute, Nanchang, 330096, Jiangxi Province, China

    Xu Tian, Feng Pei, Xin Liu, Lulu Jia & Chenxing Deng

Authors
  1. Li Lun
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  2. Xu Tian
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  3. Feng Pei
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  4. Xin Liu
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  6. Chenxing Deng
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  7. Xing Wang
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  8. Fen Lan
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  9. Hongbo Cheng
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Correspondence to Hongbo Cheng.

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Lun, L., Tian, X., Pei, F. et al. Resistance Reduction Scheme for Tower Grounding with Conductive Cement. J. Electr. Eng. Technol. 16, 1731–1742 (2021). https://doi.org/10.1007/s42835-021-00679-8

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  • DOI: https://doi.org/10.1007/s42835-021-00679-8

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