Research on the Method to Measuring Tower Grounding Resistance by Distributing Multi Electrodes around Local Area

4th International Conference on Energy Equipment Science and Engineering

Huang, Honghe^1 ; Ding, Pinggang^1 ; Liu, Guohua^1 ; Yi, Lan^2 ; Gao, Chengfeng^3 ; Hu, Lijun^1 ; Zhang, Zhanlong^3

Quzhou Power Supply Company, State Grid Zhejiang Electric Power Co. Ltd, Quzhou, Zhejiang

324000, China^1

Quzhou Bright Power Engineering Co. Ltd., Quzhou, Zhejiang

324000, China^2

State Key Laboratory of Power Transmission Equipment and System Security and New Technology, Chongqing University, Shapingba Chongqing

400030, China^3

关键词: Current distortion;    Distribution characteristics;    Electrode distribution;    Grounding resistance;    Grounding resistance measurements;    Material resources;    Measurement process;    Tower grounding resistances;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/242/2/022032/pdf
DOI  :  10.1088/1755-1315/242/2/022032

来源: IOP

【 摘 要 】

The traditional methods of measuring grounding resistance need larger current lead length and long electrodes distribution distance, which brings difficulties to the measurement of tower grounding resistance in mountainous area and dense urban area. The long electrode distribution distance also consumes more manpower and material resources, and increases the economic cost of grounding resistance measurement. In order to reduce the workload of the staff, a new method of measuring tower grounding resistance is needed, which can measure the tower grounding resistance in real-time and short distance. Based on the distribution characteristics of discharge current inside and outside the tower foundation, a new method for measuring tower grounding resistance in local area of the tower foundation is proposed in this paper. This method reflects the actual discharge current to the greatest extent during the measurement process, thus reducing the influence of current distortion in the measurement and improving the accuracy of tower grounding resistance measurement under the condition of distributing electrodes in short distance.