Electrical Machines A delta/star transformer is connected in parallel to a star/delta transformer. The turn ratio former is x times latter, the x is 3 1/√3 √3 1/3 3 1/√3 √3 1/3 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Torque angle of a synchorous machine operating from a constant voltage bus is usually defined as the space angle between Stator mmf wave and resultant flux density. Rotor mmf wave and resultant flux density wave. Rotor mmf wave and stator mmf wave. Stator mmf wave and resultant mmf wave. Stator mmf wave and resultant flux density. Rotor mmf wave and resultant flux density wave. Rotor mmf wave and stator mmf wave. Stator mmf wave and resultant mmf wave. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the armature electric current is increased to double its previous value, and the time of commutation is halved, how will the reactance voltage vary? It will be doubled. It will remain the same. It will becomes four times. It will be halved. It will be doubled. It will remain the same. It will becomes four times. It will be halved. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Torque developed in the rotor is directly proportional to slip not dependent on the slip inversely proportional to slip either of these directly proportional to slip not dependent on the slip inversely proportional to slip either of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Select the motor that should not be started on no load? Series motor. Compound motor. Shunt motor. Brushless DC motor. Series motor. Compound motor. Shunt motor. Brushless DC motor. 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? 1960 Watt. 1920 Watt. 1800 Watt. 980 Watt. 1960 Watt. 1920 Watt. 1800 Watt. 980 Watt. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS