A dc series motor is used for an overhauling load. It can work stably if
A. the armature is shunted by a resistor.
B. the field winding is reversed.
C. a resistor is put in series with the machine.
D. a divertor is put across the field.
Answer:A
A dc series motor is used for an overhauling load. It can work stably if
A. the armature is shunted by a resistor. B. the field winding is reversed. C. a resistor is put in series with the machine. D. a divertor is put across the field.