Electrical Machines A 3-phase 6 pole 50 Hz induction motor is running at 5% slip.What is the speed of the motor? 1000 rpm 900 rpm 850 rpm 950 rpm 1000 rpm 900 rpm 850 rpm 950 rpm ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The principal of starting of 3 - Φ IM is similar to synchronous motor. transformer with short-circuited secondary. repulsion motor type starting. capacitor run IM. synchronous motor. transformer with short-circuited secondary. repulsion motor type starting. capacitor run IM. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What type of dielectric material is used in capacitors used for fans and for power factor correction? Mica. Glass. Vacuum. Oil impregnated paper. Mica. Glass. Vacuum. Oil impregnated paper. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Stray losses in transformer occurs in paper insulation in transformers. steel core. winding conductors and steel structures of transformer. transformer insulating oil. paper insulation in transformers. steel core. winding conductors and steel structures of transformer. transformer insulating oil. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following represents the pitch factor? Cos α² Cos α Cos (α/2) sin (α/2) Cos α² Cos α Cos (α/2) sin (α/2) ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 3-phase slip ring induction motor is wound for 4 poles on stator and 6 poles on the rotor. When 3-phase balanced voltage source at 50 Hz is applied, it will run at zero speed 1500 rpm 1000 rpm 750rpm zero speed 1500 rpm 1000 rpm 750rpm ANSWER DOWNLOAD EXAMIANS APP
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