Electrical Machines The principle of operation of a 3 - Φ induction motor is almost similar to that of synchronous motor. transformer with secondary short circuited. capacitor start induction motor. repulsion start induction motor. synchronous motor. transformer with secondary short circuited. capacitor start induction motor. repulsion start induction motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In dc machine armature windings are placed on rotor because of the necessity for electromechanical energy conversion. generation of voltage. commutation. development of torque. electromechanical energy conversion. generation of voltage. commutation. development of torque. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What is/are the necessary conditions for parallel operation of alternators? Speed of alternators should be same Both 1and 2 Terminal voltage is same Frequency should be same Speed of alternators should be same Both 1and 2 Terminal voltage is same Frequency should be same ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A DC series motor has which of the following characteristics? Has a poor torque. Has its field winding consinting of thick wire and less no of turns. Can be started easily without load. Has a almost constant speed. Has a poor torque. Has its field winding consinting of thick wire and less no of turns. Can be started easily without load. Has a almost constant speed. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For power factor improvement the synchronous motor is to be heavily loaded and underexcited lightly loaded and underecited heavily loaded and over excited lightly loaded and over excited heavily loaded and underexcited lightly loaded and underecited heavily loaded and over excited lightly loaded and over excited ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The self induced emf in the coil undergoing commutation is called the None of these reactance voltage. statically induced voltage. dynamically induced voltage. None of these reactance voltage. statically induced voltage. dynamically induced voltage. ANSWER DOWNLOAD EXAMIANS APP
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