Electrical Machines A shunt generator is running at 1000 rpm. If flux is reduced by half, then what is the new speed? 2000. 500. 1000. 0. 2000. 500. 1000. 0. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In single phase rotary converter the number of slip rings will be four. three. six. two. four. three. six. two. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For a standard frequency the machine operates at a particular speed known as slip speed. normal speed. synchronous speed. any of the above. slip speed. normal speed. synchronous speed. any of the above. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The flux involved in the emf equation of a transformer has rms value. average value. total value. maximum value. rms value. average value. total value. maximum value. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 200 V DC machine supplies 20 A at 200 V as a generator. The armature resistance is 0.2 Ω. If the machine is now operated as a motor at same terminal voltage and current but with the flux increased by 10%, the ratio of motor speed to generator speed is 0.95 0.96 1.06 0.87 0.95 0.96 1.06 0.87 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following statement is correct, if short circuit ratio is high? High voltage regulation Good voltage regulation Low short circuit current None of these High voltage regulation Good voltage regulation Low short circuit current None of these ANSWER DOWNLOAD EXAMIANS APP
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