The effect of floating-potential conductors on the electric field near overhead transmission lines |
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| Authors: | Deming Yu Shuwei Wan Fangdong Chen Xingming Bian Lan Chen Mark MacAlpine Jifei Zhang Lin Zhang Liming Wang |
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| Affiliation: | 1. Department of Electrical Engineering, Tsinghua University, 100084 Beijing, PR China;2. Laboratory of Advanced Technology of Electrical Engineering and Energy Graduate School at Shenzhen, Tsinghua University 518055 Shenzhen, Guangdong Province, PR China;3. Beijing Extra High Voltage Company, North China Grid Company Limited, 102488 Beijing, PR China |
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| Abstract: | The use of helicopters as platforms equipped with infrared and UV detection, digital cameras and other inspection equipment is an effective method of increasing the efficiency and effectiveness of transmission line inspection. However, as a 'floating-potential conductor' near to a high-voltage transmission line, a helicopter causes distortion of the local electric field, with regions of high electric field near the helicopter's surface where the curvature is high. In this paper, these fields are investigated both by calculation and experimentally, using a simple metal sphere, and then a model of a helicopter, placed near to a short length of energized transmission line conductor. |
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