The effect on the generator excitation magnetic field is different when the capacity and power factor of load are different, and the effect on the internal impedance voltage drop is different, too.
In the high tension field, the excitation and ionization of particles on the fuel drop surface only need the lower cylinder temperature to realize the better second atomization.
在高压电场中,燃油液滴表面的粒子得以激化和离子化,只需较低的汽缸温度,就可得到较好的二次雾化。
3
The outstanding advantages of DC machines arise from the wide variety of operating characteristics which can be obtained by selection of the method ofexcitationof the field windings.