【摘要】 介绍了我国特高压交流电晕笼的基本原理、参数和结构,详细分析了电晕笼中导线电晕可听噪声和无线电干扰的测试方法,利用该特高压电晕笼对特高压真型导线的交流电晕效应进行了测试。通过电晕笼实测数据获得了我国特高压真型导线的可听噪声产生功率和无线电干扰激发函数,为进一步归纳出适合我国实际情况的可听噪声和无线电干扰预测方法提供了基础。更多还原

【Abstract】 An ultra-high voltage(UHV) corona test cage has been constructed in the UHV AC test base of SGCC,which is situated in Wuhan.The basic theory and structure of the cage is introduced.The cross-section size and the length of UHV AC cage is 8 m×8 m and 35 m respectively.It can be used to study the corona performance of 1～12 split bundles.The source of test cage is an 800 kV AC test transformer and the simulated maximal voltage level is AC 1 500 kV.The measuring methods for audible noise(AN) and radio interference(RI) of conductor in test cage are analyzed.With the UHV test cage,corona effect of the bundle used in 1 000 kV UHV AC test demonstration project of China is measured.The AN generation power and RI excitation function of UHV bundle are obtained by the UHV cage test data.It supplies the foundation for the prediction of AN and RI of UHV transmission lines in China.更多还原