Replacing the square bar by the cicular cable in the stator windings of large electric machine can eliminate the concentration of the electrical strength on the four corners of the square bar, and increase the voltage of the generator.

• 大电机定子绕组采用圆形电缆取代矩形线棒可以消除线棒矩形截面4个角部的电场强度集中问题,并提高发电机的额定电压。