Electrical Machines Swinburne test is conducted under which of the following condition? any of the above full load no load half load any of the above full load no load half load ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Flashing the field of DC generator means creating residual magnetism by a DC source. neutralising residual magnetism. increasing flux density by adding extra turns of winding. making the magnetic losses forces parallel. creating residual magnetism by a DC source. neutralising residual magnetism. increasing flux density by adding extra turns of winding. making the magnetic losses forces parallel. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A shunt generator has a critical field resistance of 300 Ω at a speed of 800 rpm if the speed is raised to 1000 rpm the critical field resistance is 375 Ω. 150 Ω. 145 Ω. 225 Ω. 375 Ω. 150 Ω. 145 Ω. 225 Ω. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a synchronous motor torque or load angle δ ------------- with increase in load None of these increases decreases remains unaffected None of these increases decreases remains unaffected ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In synchronous motor, the damper winding is generally used to prevent hunting and provide the starting torque. reduce noise level only. provide starting torque only. reduce the eddy currents. prevent hunting and provide the starting torque. reduce noise level only. provide starting torque only. reduce the eddy currents. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following alternators contain large number of poles? Aame in both alternators. Turbo alternators. None of these Hydro alternators. Aame in both alternators. Turbo alternators. None of these Hydro alternators. ANSWER DOWNLOAD EXAMIANS APP
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