Electrical Machines The low voltage winding of a 400/230 V single phase 50 Hz transformer is to be connected to keep the magnetization current at the same level in both the cases the voltage at 25 Hz should be 230 V 460 V 65 V 115 V 230 V 460 V 65 V 115 V ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines As compared to an induction motor, the air gap in a DC motor is same. more. less than 50%. between 50% and 90%. same. more. less than 50%. between 50% and 90%. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Regenerative braking is not found in which motor? DC shunt. Induction motor. DC series. DC compound. DC shunt. Induction motor. DC series. DC compound. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Series generators are used in which of the following applications? All of these Used as boosters in dc distribution or transmission. Air crafts. Arc welding. All of these Used as boosters in dc distribution or transmission. Air crafts. Arc welding. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The 3 - Φ induction motors are, by a very considerable margin, the most widely used AC motors as they are capable of operation under range of leading and lagging pf. they have very good speed regulation. these are cheaper in cost, simple and rugged in construction. they have maximum efficiency and maximum starting torque. they are capable of operation under range of leading and lagging pf. they have very good speed regulation. these are cheaper in cost, simple and rugged in construction. they have maximum efficiency and maximum starting torque. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a synchronous generator, if mechanical input is increased with constant excitation, the load angle will decrease None of these increase either increase or decrease decrease None of these increase either increase or decrease ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS