Electrical Machines A DC series motor drawing an armature current of Ia is operating under saturated magnetic conditions. The torque developed in the motor is proportional to Ia 1/Ia I/Ia2 Ia2 Ia 1/Ia I/Ia2 Ia2 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a DC machine, which of these parameters remain the same whether it runs as a DC motor or a DC generator? Armature current. Can not be determined. Mechanical power. Induced emf. Armature current. Can not be determined. Mechanical power. Induced emf. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Regenerative braking is possible in DC shunt motor with field weakening control. DC compound motor. DC shunt motor with armature resistance control. DC series motor. DC shunt motor with field weakening control. DC compound motor. DC shunt motor with armature resistance control. DC series motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A synchorous generator connected to an infinite bus is over excited. Considering only the reactive power from the point view of the system the machine acts as None of these. A capacitor. A resistor. an inductor. None of these. A capacitor. A resistor. an inductor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Tappings of a transformer are provided at the middle of hv side at the phase end of hv side at the neutral side end of hv side at the phase end of lv side at the middle of hv side at the phase end of hv side at the neutral side end of hv side at the phase end of lv side ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Armature reaction in DC generators will result in reduction in generated emf. short circuit. increase in slip. open circuit. reduction in generated emf. short circuit. increase in slip. open circuit. ANSWER DOWNLOAD EXAMIANS APP
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