Electrical Machines Quadrature axis synchronous reactance is the ratio of Vmin to Imax. Vmax to Imax. Vmin to Imin. Vmax to Imin. Vmin to Imax. Vmax to Imax. Vmin to Imin. Vmax to Imin. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines It is an advisable to use auto transformer if the transformation ratio is 0.5. near to 1. 0.25. Greater than 1. 0.5. near to 1. 0.25. Greater than 1. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 230 volt dc motor has an armature winding resistance of 0.5 ohm. Calculate the emf induced by the motor if the full load armature current is 23 ampere. 220.4 volt. 120 volt. None of these. 218.5 volt. 220.4 volt. 120 volt. None of these. 218.5 volt. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The introduction of interpoles in between the main poles improves the performance of a dc machine, because the inequality of air-gap flux on the top and bottom halves of the armature is removed the interpoles produce additional flux to augment the developed torque the flux waveform is improved with reduction in harmonics a counter-emf is induced in the coil undergoing commutation the inequality of air-gap flux on the top and bottom halves of the armature is removed the interpoles produce additional flux to augment the developed torque the flux waveform is improved with reduction in harmonics a counter-emf is induced in the coil undergoing commutation ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Armature reaction depends on which of the following? None of these both 1 and 2 magnitude of load current power factor of load None of these both 1 and 2 magnitude of load current power factor of load ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines High starting torque and low starting current is the advantage of slip ring induction motor. hysteresis motor. squirrel cage induction motor. stepper motor. slip ring induction motor. hysteresis motor. squirrel cage induction motor. stepper motor. ANSWER DOWNLOAD EXAMIANS APP
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