Abstract
This paper analyses the production of the current shunt and the influence factor. Then establish the tower overhead ground wire current shunt model. The current commonly used grounding resistance measurement method for shaking table method and clamp meter, shaking table method need to disconnect the ground lead line, the measuring error of clamp meter, based on the two methods proposed a new method of grounding measurement, continuous grounding the premise the high frequency power supply to achieve the measurement of grounding resistance. According to the model, this paper explained the relationship between the injecting current shunt coefficient and the overhead ground wire and voltage frequency when testing the grounding resistance. As a key to frequency characteristics of overhead ground wire, we offered a new method of measuring tower grounding resistance called high-frequency power method and got the best injection current frequency by tower split calculate. Compared with the shaking table method, the clamp table method is the most error, and the randomness of measured data is very strong. Followed by different frequency power measurement, the measuring result of the high-frequency power supply is close to that of the shake table method, and the error is less than 10%.
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Pei, Y. et al. (2020). Implementation of Tower Grounding Resistance Measurement Based on Decreasing Overhead Grounding Line’s Current Shunt Using High-Frequency Power Supply. In: Hassanien, A., Azar, A., Gaber, T., Bhatnagar, R., F. Tolba, M. (eds) The International Conference on Advanced Machine Learning Technologies and Applications (AMLTA2019). AMLTA 2019. Advances in Intelligent Systems and Computing, vol 921. Springer, Cham. https://doi.org/10.1007/978-3-030-14118-9_80
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DOI: https://doi.org/10.1007/978-3-030-14118-9_80
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