Electrical Machines The field divertor resistance for a DC series motor is of order of 0.1 Ω 100 Ω 10 Ω 50 Ω 0.1 Ω 100 Ω 10 Ω 50 Ω ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a 3 - Φ wound rotor induction motor the short circuit gear is used to short circuit the starting resistance in the starter. None of these stator phases of the motor. rotor at slip rings. starting resistance in the starter. None of these stator phases of the motor. rotor at slip rings. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Width of a carbon brush should be equal to the width of the 2 to 3 commutator segment. less than the width of commutator segment. the width of the 1 to 2 commutator segment. the width more than 3 commutator segment. the width of the 2 to 3 commutator segment. less than the width of commutator segment. the width of the 1 to 2 commutator segment. the width more than 3 commutator segment. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following machine will have maximum efficiency? DC motor. Electrical power transformer. Electrical power generator. Induction motor. DC motor. Electrical power transformer. Electrical power generator. Induction motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In case of a compensated DC series motor, the compensating winding is provided In parallel with the armature winding. As a separate unit. In series with the armature winding. In parallel with the field winding. In parallel with the armature winding. As a separate unit. In series with the armature winding. In parallel with the field winding. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The DC generator runs at a speed of 1000 rpm and flux per pole is 0.2 Wb, number of poles are 2 the winding is wave wound and having 480 conductors. The critical speed is 1200 rpm. Then the generated emf ( Eg ) 2000 Volt. 1600 Volt. 0 Volt. 1500 Volt. 2000 Volt. 1600 Volt. 0 Volt. 1500 Volt. ANSWER DOWNLOAD EXAMIANS APP
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