Therefore, the magnetic pole has to be renovated, so as to improve the slot conjugation, enlarge the airgap of generator set, extend the section area of the damper bar.
因而拟对其进行磁极改造，以改善发电机定转子之间的槽配合，增大电机气隙、增加阻尼棒截面积。
2
To the discharge in the airgap, with the increase of applied voltage, the discharge area is larger, and the time interval is smaller, and discharge pulses frequency is higher.