Electrical Machines A 3-phase 6 pole 50 Hz induction motor is running at 5% slip.What is the speed of the motor? 850 rpm 1000 rpm 900 rpm 950 rpm 850 rpm 1000 rpm 900 rpm 950 rpm ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the excitation is increased, the power factor is unity power factor None of these lagging power factor leading power factor unity power factor None of these lagging power factor leading power factor ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 3-phase, 50 Hz, 4 pole induction motor is running at 1440 rpm. Find the rotor efficiency? 96% 95% 92% 94% 96% 95% 92% 94% ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In most condition which frame of motor will be preferred? Splash proof. Drip proof. Totally enclosed fan coiled. Open type. Splash proof. Drip proof. Totally enclosed fan coiled. Open type. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following motors has low ratings only? Capacitor start Resistance split phase Capacitor run Shaded pole Capacitor start Resistance split phase Capacitor run Shaded pole ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The rotor winding for a 3-phase slip-ring induction motor having delta-connected stator must be connected in delta. delta or star according to need. star. None of these delta. delta or star according to need. star. None of these ANSWER DOWNLOAD EXAMIANS APP
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