The Damper Performance Tests for the Aeolian Vibration of Overhead Lines

According to Tongtangjia 220kV transmission line in Jiangmen, a city in southern China and IEC standard, Aeolian vibration experiments were designed and conducted in this paper.The tests investigated the an-vibration properties of stock-bridge dampers at different tension, simultaneous determinate the natural vibration frequencies of lines with or without dampers which, were compared with the theoretical calculating results and the numerical results.It shows that performances of dampers on the lines meet the standard of IEC.Besides, the frequencies of lines are in accordance with frequencies in theory and the calculating results of MATLAB.By comparison, MATLAB natural frequencies of conductor without damper are close to the theoretical method, and the frequencies would decrease with the addition of damper compared with the bare line.The no-dimensional damping coefficients at different tension should taken into consideration in anti-vibration design.And IEE standard is a good way to verity the damper performance.