On-line monitoring system of transmission line galloping based on tension measurement

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On-line monitoring system of transmission line galloping based on tension measurement
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                        Li LianlianLi Lianlian
1. NARI Group Corporation(State Grid Electric Power Research Institute), Nanjing 211106, China; 2. Wuhan NARI Limited Liability Company, State Grid Electric Power Research Institute, Wuhan 430074, China
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Cheng PengCheng Peng
1. NARI Group Corporation(State Grid Electric Power Research Institute), Nanjing 211106, China; 2. Wuhan NARI Limited Liability Company, State Grid Electric Power Research Institute, Wuhan 430074, China
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Feng ManFeng Man
1. NARI Group Corporation(State Grid Electric Power Research Institute), Nanjing 211106, China; 2. Wuhan NARI Limited Liability Company, State Grid Electric Power Research Institute, Wuhan 430074, China
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Yang LitianYang Litian
1. NARI Group Corporation(State Grid Electric Power Research Institute), Nanjing 211106, China; 2. Wuhan NARI Limited Liability Company, State Grid Electric Power Research Institute, Wuhan 430074, China
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Qin HaohaoQin Haohao
1. NARI Group Corporation(State Grid Electric Power Research Institute), Nanjing 211106, China; 2. Wuhan NARI Limited Liability Company, State Grid Electric Power Research Institute, Wuhan 430074, China
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Jiang XianfengJiang Xianfeng
1. NARI Group Corporation(State Grid Electric Power Research Institute), Nanjing 211106, China; 2. Wuhan NARI Limited Liability Company, State Grid Electric Power Research Institute, Wuhan 430074, China
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Affiliation:1. NARI Group Corporation(State Grid Electric Power Research Institute), Nanjing 211106, China; 2. Wuhan NARI Limited Liability Company, State Grid Electric Power Research Institute, Wuhan 430074, China
Clc Number:TH122; TP273
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Abstract:

Based on the model of tension variation in transmission line, the paper calculates the change in the horizontal component and the vertical component and develops online monitoring system of transmission line galloping. Based on conductor structure, the pressure sensor adapted to line measurement is designed. The system exports digital signal of tension variation through A/D transformation. Based on ZigBee wireless transmission technology, the function of tension variation is realized. Finally through certain comparison test of transmission line, it is proved that the measurement system can effectively implement the transmission line galloping. When the wind speed is greater than 6.7 m/s, the galloping.amplitude of conductor is positively correlated with the wind speed. When the wind speed is 12 m/s, it reaches a maximum of 6.1 m. As the wind speed increases, the amplitude of the wire is oscillating.

Key words:tension measurement; transmission line; on-line monitoring; transmission line galloping; ZigBee

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Online: December 05,2017
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