Electrical Machines A 3 - φ induction motor can also be referred to as a transformer. shunt motor. repulsion motor. asynchronous motor. transformer. shunt motor. repulsion motor. asynchronous motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a three phase slip-ring induction motor, brushes are connected to external star-connected resistors. 3 - Φ AC supply. DC supply. equalizing coils. external star-connected resistors. 3 - Φ AC supply. DC supply. equalizing coils. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Find the number of poles required, when the frequency is 50Hz and speed of the motor is 500 rpm? 12 5 10 24 12 5 10 24 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines As compared to an induction motor, the air gap in a DC motor is less than 50%. between 50% and 90%. more. same. less than 50%. between 50% and 90%. more. same. 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? 60W 40W 80W 100W 60W 40W 80W 100W ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Commutator in DC generator is used for increase efficiency convert AC armature current in to DC reduce losses collecting of current increase efficiency convert AC armature current in to DC reduce losses collecting of current ANSWER DOWNLOAD EXAMIANS APP
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