Electrical Machines A 4 pole 50 Hz induction motor is running at 1470 rpm. What is the slip value? 0.02 0.2 0.04 0.4 0.02 0.2 0.04 0.4 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Counter emf of a DC motor exceeds supply voltage regulates its armature voltage. aids applied voltage. helps in energy conversion. exceeds supply voltage regulates its armature voltage. aids applied voltage. helps in energy conversion. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The rotor of a three phase induction motor has an impedance of 0.4 + j4 ohm per phase at standstill the maximum torque occurs at a slip of _____________. 10 %. 15 %. 25 %. 50 %. 10 %. 15 %. 25 %. 50 %. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following is/are the methods to reduce the armature reaction and its effects? pole chamfering pole stacking compensating winding All of these pole chamfering pole stacking compensating winding All of these 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 A 3-phase, 50 Hz, 4 pole induction motor is running at 1440 rpm and rotor input power is 2KW. Find the rotor copper loss? 100W 80W 60W 40W 100W 80W 60W 40W ANSWER DOWNLOAD EXAMIANS APP
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