By increasing the resistance , the characteristic will cut zero-speed axis to give a lower , though adequate starting torque and a reasonable starting current.
By increasing the resistance , the characteristic will cut zero-speed axis to give a lower , though adequate starting torque and a reasonable starting current.
并励电动机（机械特性）方程表明：若磁通和电压恒定，则向下倾斜的转矩/速度曲线的斜率是直接与电枢电阻成正比的。