Electrical Machines A delta/star transformer is connected in parallel to a star/delta transformer. The turn ratio former is x times latter, the x is 1/3 3 1/√3 √3 1/3 3 1/√3 √3 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A transformer has hysteresis loss of 30 W, at 240 V, 60 Hz. The hysteresis loss at 200 V, 50 Hz will be 25 W. 28 W. 30 W. 36 W. 25 W. 28 W. 30 W. 36 W. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In synchronous motor the torque is proportional to Power P 1/P 1/P² P² Power P 1/P 1/P² P² ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a three phase slip-ring induction motor, brushes are connected to DC supply. external star-connected resistors. 3 - Φ AC supply. equalizing coils. DC supply. external star-connected resistors. 3 - Φ AC supply. equalizing coils. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What does happen if tripled harmonics given to induction motor? Will results in open circuit. Will results in short circuit. Fail to start. Nothing will happen. Will results in open circuit. Will results in short circuit. Fail to start. Nothing will happen. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC generators, the brushes remain in contact with conductors which lie under north pole. lie under south pole. there is no hard and fast rule for this. lie in the inter polar gaps. lie under north pole. lie under south pole. there is no hard and fast rule for this. lie in the inter polar gaps. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS