By improving on the Epstein frame measuring system,a method is proposed to measure the material loss under non-sinusoidal voltage,experimental results agree with the results computed well.

• 通过改进的爱泼斯坦方圈实验,给出一种非正弦供电下电工材料性能的实验研究方法,实验结果与理论值吻合较好。