【摘要】 为研究放电脉冲沿变压器绕组传播的规律,提出了测量变压器绕组传输特性的散射参数测量法,变换散 射参数为传输参数,获得了变压器绕组分段电压电流传输函数。变压器绕组实物模型测量结果表明,该方法与脉 冲响应法的测量结果基本一致,测量结果信噪比高,测量频率范围宽,能消除测量引线、反射和噪声等带来的误差。更多还原

【Abstract】 Scattering parameter measurement method is presented to test the sectional winding transfer function (SWTF) between different PD location and line end. The experiment results tested on 180 turns real transformer windings agree with pulse response measuring results. Compared with pulse response method, scattering parameter method is found to be superior in most respect, it can avoid errors caused by the effects of connecting cables, reflections and noise etc.更多还原