Electrical Machines The speed of rotation of 5th harmonic component in the stator of an induction motor is (1 / 5) times the synchronous speed. 0.5 times the synchronous speed. 5 times the synchronous speed. (1 / 15) times the synchronous speed. (1 / 5) times the synchronous speed. 0.5 times the synchronous speed. 5 times the synchronous speed. (1 / 15) times the synchronous speed. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The main purpose of providing tertiary winding in a three phase transformer is None of these to interconnect three voltage systems. to suppress harmonic and unbalance in voltage. to carry extra load. None of these to interconnect three voltage systems. to suppress harmonic and unbalance in voltage. to carry extra load. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What type of dielectric material is used in capacitors used for fans and for power factor correction? Vacuum. Mica. Oil impregnated paper. Glass. Vacuum. Mica. Oil impregnated paper. Glass. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What are slot wedges in a DC machine made of? Mild steel. Silicon steel. Cast iron. Fibre. Mild steel. Silicon steel. Cast iron. Fibre. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A dc shunt motor runs at a no-load speed of 1140 rpm. At full load, armature reaction weakens the main flux by 5% whereas the armature circuit voltage drops by 10%. The motor full-load speed in rpm is 1203 1200 1080 1000 1203 1200 1080 1000 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Commonly used starters of cage motor is None of these DOL. both A and B. star delta. None of these DOL. both A and B. star delta. ANSWER DOWNLOAD EXAMIANS APP
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