把混凝土作为电工材料，对其电性能进行研究，尚属少见。
It is still seldom to regard concrete as a kind of electrical material and study its electrical property.
内部采用优质的电磁材料和电工材料，定子绝缘为E（或B）级，转子绝缘为B级。
The Intermal uses electromagnetism material and electricians material with high quality. The stator insulation is E(or B) level, the rotor insulation is B level.
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。
By improving on the Epstein frame measuring system, a method is proposed to measure the material loss under non-sinus.
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。
By improving on the Epstein frame measuring system, a method is proposed to measure the material loss under non-sinus.
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