Electrical Machines If an induction machine is run at above the synchronous speed it acts as a synchronous motor None of these an induction motor an induction generator a synchronous motor None of these an induction motor an induction generator ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Synchronous condensers are used to improve the power factor reduce hunting improve starting torque All of these improve the power factor reduce hunting improve starting torque All of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When excitation is increased (over excitation), the synchronous generator operates at unity power factor. lagging power factor. leading power factor. any of the above. unity power factor. lagging power factor. leading power factor. any of the above. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines No load saturation characteristics are plotted between short circuit current and field current short circuit current and armature current no load voltage and field current no load voltage and armature current short circuit current and field current short circuit current and armature current no load voltage and field current no load voltage and armature current ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For P pole machine relation between electrical degrees and mechanical degrees is θelec = 4/P*θmech θelec = P/2*θmech θelec = 2/P*θmech θelec = θmech θelec = 4/P*θmech θelec = P/2*θmech θelec = 2/P*θmech θelec = θmech ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Compensating winding are used to rectify the flux density waveform at throughout the air gap. None of these region under main pole. interpole region. throughout the air gap. None of these region under main pole. interpole region. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS