Electrical Machines In the 3-phase induction motor, the resultant flux is of a constant nature and is 3 times maximum value of flux due to any phase equal to φm, where φm is the maximum flux due to any phase 1/2 times maximum value of flux due to any phase 3/2 times maximum value of flux due to any phase 3 times maximum value of flux due to any phase equal to φm, where φm is the maximum flux due to any phase 1/2 times maximum value of flux due to any phase 3/2 times maximum value of flux due to any phase ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Speed of DC motor can be controlled by varying applied voltage. its flux oer pole. resistance of armature culture. all of these. applied voltage. its flux oer pole. resistance of armature culture. all of these. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The stator frame in an induction motor is used to hold armature stamping in position. provide return path for the flux. protect the whole machine. ventilate the armature. hold armature stamping in position. provide return path for the flux. protect the whole machine. ventilate the armature. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 10KVA auto transformer, turn ratio is 0.4. Find the power transferred inductively? 0 KVA 6 KVA 10 KVA 4 KVA 0 KVA 6 KVA 10 KVA 4 KVA ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Find the synchronous reactance of alternators in which a given field current of 200 A on short circuit and a generated emf of 50 V on open circuit. Armature resistance is 0.1 ohm 1Ω. 0.25Ω. 0.23Ω. 0.5Ω. 1Ω. 0.25Ω. 0.23Ω. 0.5Ω. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a DC generator sparking between brushes and commutator surface may be due to too rapid reversal of current. under commutation. any of the above. over commutation. too rapid reversal of current. under commutation. any of the above. over commutation. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS