Electrical Machines At stand still condition the value of slip is 0 infinite value 1 finite value 0 infinite value 1 finite value ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A short-shunt cumulatively-compounded dc generator builds up a voltage of 220 V at no load at rated speed. If it is operated as a differentially compounded generator, other things remaining the same, it would build up somewhat less than 220 V 6 V more than 220 V 220 V somewhat less than 220 V 6 V more than 220 V 220 V ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What is the shunt resistance component equivalent circuit obtained by no load test of an induction motor representative of ? windage and friction loss Copper loss both 1 and 2 core loss only windage and friction loss Copper loss both 1 and 2 core loss only ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A separately-excited dc motor has an armature resistance of 0.5 Ω. It runs off a 250 V dc supply Drawing an armature current of 20 A at 1500 rpm. The torque developed for an armature current Of 10 A, for the same field current, will be 15.28 Nm 16.55 Nm 15.6 Nm 15.92 Nm 15.28 Nm 16.55 Nm 15.6 Nm 15.92 Nm ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When excitation is increased (over excitation), the synchronous generator operates at lagging power factor. any of the above. unity power factor. leading power factor. lagging power factor. any of the above. unity power factor. leading power factor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Armature reaction in dc motor results short circuit. open circuit. decrease in speed. increase in speed. short circuit. open circuit. decrease in speed. increase in speed. ANSWER DOWNLOAD EXAMIANS APP
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