Electrical Machines In dc machines, the space distribution of air-gap flux density wave at no load is rectangular flat-topped co- sinusoidal sinusoidal rectangular flat-topped co- sinusoidal sinusoidal ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Cogging in induction motor occurs when number of stator teeth - number of rotor teeth = 0. number of stator teeth - number of rotor teeth = negative number. number of stator teeth - number of rotor teeth = odd number. number of stator teeth - number of rotor teeth = even number. number of stator teeth - number of rotor teeth = 0. number of stator teeth - number of rotor teeth = negative number. number of stator teeth - number of rotor teeth = odd number. number of stator teeth - number of rotor teeth = even number. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Due to magnetic saturation, the flux per pole in a DC machine without brush shift increases in both the generators and the motors with load. increases in generators but decreases in motor with load. decreases in both generators and the motors with load. decreases in generators and increases in motor with load. increases in both the generators and the motors with load. increases in generators but decreases in motor with load. decreases in both generators and the motors with load. decreases in generators and increases in motor with load. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Find the developed torque DC Series Motor having armature resistance of 0.2 Ω and taking armature current of 60 A is connected to 250 V supply. Considered brush drop of 1 V each. 266.20 N-m. cant be determined. 133.22 N-m 234.76 N-m. 266.20 N-m. cant be determined. 133.22 N-m 234.76 N-m. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A frog leg winding is used in a DC machine to eliminate the use equalizer in lap winding. the use of compensating winding. reactance voltage produced due to communication. the use drum winding. the use equalizer in lap winding. the use of compensating winding. reactance voltage produced due to communication. the use drum winding. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The condition for maximum running torque is R = S.X zero 0.5 lagging unity 0.707 lagging R = S.X zero 0.5 lagging unity 0.707 lagging ANSWER DOWNLOAD EXAMIANS APP
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