Electrical Machines In a single phase transformer the magnitude of leakage reactance is twice that of resistance of both primary and secondary. With secondary short circuited, the input power factor is 1/√2 2/√5 1/√5 1/3 1/√2 2/√5 1/√5 1/3 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines An inverted V-curve of synchronous motor shows the variation of power factor and dc excitation at constant load power factor and supply voltage during hunting All of these supply voltage and field current at constant excitation power factor and dc excitation at constant load power factor and supply voltage during hunting All of these supply voltage and field current at constant excitation ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The torque angle, in a synchronous motor, is the angle between the supply voltage and the back emf. the rotating stator flux and rotor flux. None of these magnetizing electric current and back emf. the supply voltage and the back emf. the rotating stator flux and rotor flux. None of these magnetizing electric current and back emf. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which type of motors are used for lathes? DC shunt motors. Synchronous motor. Either A or B. Cage induction motor. DC shunt motors. Synchronous motor. Either A or B. Cage induction motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In dc machines, the space distribution of air-gap flux density wave at no load is co- sinusoidal flat-topped sinusoidal rectangular co- sinusoidal flat-topped sinusoidal rectangular ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In which of the following generators negative voltage regulation can occur? shunt generator over compound generator series generators both B and C shunt generator over compound generator series generators both B and C ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS