Electrical Machines From no load to full load the slip will None of these slightly increase. slightly decrease. not change. None of these slightly increase. slightly decrease. not change. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a DC series generator, the terminal voltage with increase in load will remain nearly constant increase to rated voltage and then may decrease increase gradually and then stay at rated voltage decrease remain nearly constant increase to rated voltage and then may decrease increase gradually and then stay at rated voltage decrease ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 3 - Φ, 6 pole, 50 Hz IM is running at a full load speed of 980 rpm. If it delivers an air gap power of 98000 Watt, calculate the rotor ohmic loss? 1920 Watt. 980 Watt. 1800 Watt. 1960 Watt. 1920 Watt. 980 Watt. 1800 Watt. 1960 Watt. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines To eliminate the 5th harmonic in the induced voltages their respective pitch factor angle should be 30° 18° 72° 36° 30° 18° 72° 36° ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Two transformers operating in parallel will share the load depending on their per unit impedance leakage reactance ratings efficiency per unit impedance leakage reactance ratings efficiency ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines φA DC shunt machine generates 250 V on open circuit at 1000 RPM. Armature resistance is 0.5 Ω, field resistance 250 Ω. When running as a motor takes 4 A at 250 V. Calculate the speed when running as a motor taking 40 A at 250 V. Armature reaction weakens the field by 4%. 960 RPM 920 RPM 970 RPM 940 RPM 960 RPM 920 RPM 970 RPM 940 RPM ANSWER DOWNLOAD EXAMIANS APP
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