Electrical Machines Total core loss is also called as -------------? Copper loss Eddy current loss Hysteresis loss Magnetic loss Copper loss Eddy current loss Hysteresis loss Magnetic loss ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a dc machine 72 number of coils are used. Find the number of commutator segments required? 36 72 74 37 36 72 74 37 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Two synchronous generators operating in parallel 200 MW and 400 MW respectively. The drooping characteristics of their governors are identical as 4% from no load to full load. Consider the governors operating at 50Hz on no load. How will the machine share, if the load is 600 MW? 230.7 MW and 369.23 MW respectively generator 1 gets over load 200 MW and 400MW respectively generator 2 gets over load 230.7 MW and 369.23 MW respectively generator 1 gets over load 200 MW and 400MW respectively generator 2 gets over load ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Compensating windings are used in DC generators None of these mainly to reduce the eddy currents by providing local short circuit. to provide path for the circulation of cooling air. to neutralize the cross magnetizing effect of the armature reaction. None of these mainly to reduce the eddy currents by providing local short circuit. to provide path for the circulation of cooling air. to neutralize the cross magnetizing effect of the armature reaction. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 3 - Φ slip ring motor has any of the above. short-circuited rotor. double cage rotor. wound rotor. any of the above. short-circuited rotor. double cage rotor. wound rotor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When the mechanical power is developed by a DC motor maximum None of above. Back emf is equal. back emf is equal to applied voltage. Back emf is equal to half of applied voltage. None of above. Back emf is equal. back emf is equal to applied voltage. Back emf is equal to half of applied voltage. ANSWER DOWNLOAD EXAMIANS APP
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