Electrical Machines In dc machines, the space distribution of air-gap flux density wave at no load is co- sinusoidal rectangular sinusoidal flat-topped co- sinusoidal rectangular sinusoidal flat-topped ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The full load copper loss and iron loss of transformer are 6400W and 5000W respectively. The copper loss and iron loss at half load will be respectively? 3200 W and 5200 W 3200 W and 2500 W 1600 W and 1250 W 1600 W and 5000 W 3200 W and 5200 W 3200 W and 2500 W 1600 W and 1250 W 1600 W and 5000 W ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following is not a necessary condition to be satisfied for synchronising an incoming alternator to an already operating alternator? same prime mover speed same phase sequence same frequency same voltage magnitude same prime mover speed same phase sequence same frequency same voltage magnitude ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a transformer, hysteresis and eddy current losses depend upon supply frequency both 2 and 3 maximum flux density load current supply frequency both 2 and 3 maximum flux density load current ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the field connection of a DC Shunt Motor is changed then it will run in same direction by slowly. motor will not run. it will run in same direction. it will run in opposite direction. it will run in same direction by slowly. motor will not run. it will run in same direction. it will run in opposite direction. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A DC Motor is driving a constant load torque having armature resistance of 0.25 Ω and armature current of 60 A having connected to a voltage of 230 V. Now a resistance of 1 ohm is added into the armature circuit. The ratio of their speed will be 0.25. 0.62. 1.24. 0.72. 0.25. 0.62. 1.24. 0.72. ANSWER DOWNLOAD EXAMIANS APP
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