Electrical Machines A three phase induction motor has a synchronous speed of 1500 rpm the machine runs at 1460 rpm at a particular load. The slip at this load is ___________. 5 %. 2.67 %. 1.5 %. 30 %. 5 %. 2.67 %. 1.5 %. 30 %. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In dc machine armature windings are placed on rotor because of the necessity for electromechanical energy conversion. commutation. development of torque. generation of voltage. electromechanical energy conversion. commutation. development of torque. generation of voltage. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What are the starters used for starting of cage motors? Auto transformer starter. All of these. DOL starter. Star-delta starter. Auto transformer starter. All of these. DOL starter. Star-delta starter. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The functions of inter poles are None of these both 1 and 2 reduce cross magnetization effect and improve commutation nullify reactance voltage and improve the commutation. None of these both 1 and 2 reduce cross magnetization effect and improve commutation nullify reactance voltage and improve the commutation. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a star - delta starting of an IM resistance is inserted in the rotor. applied voltage per stator phase is 57.7 % of a line volt line voltage is 57.7 % of stator voltage. reduced voltage is applied to the stator. resistance is inserted in the rotor. applied voltage per stator phase is 57.7 % of a line volt line voltage is 57.7 % of stator voltage. reduced voltage is applied to the stator. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Synchronous reactance of an alternator represents armature reactance and leakage reactance field winding reactance All of these a reactance operating at synchronous speed armature reactance and leakage reactance field winding reactance All of these a reactance operating at synchronous speed ANSWER DOWNLOAD EXAMIANS APP
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