Electrical Machines For the purpose of starting an induction motor, star/delta switch is an equivalent to auto transformer of ratio 33.3% 57.7% 50% 66.3% 33.3% 57.7% 50% 66.3% ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC generators, electric current to the external circuit from armature is given through commutator. slip rings. solid connection. none of above. commutator. slip rings. solid connection. none of above. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Slip test is performed to determine direct axis reactance and quadrature axis reactance slip All of these positive sequence reactance and negative sequence reactance direct axis reactance and quadrature axis reactance slip All of these positive sequence reactance and negative sequence reactance ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 500 V, 120 KW, 50 Hz, star connected synchronous motor operating at 0.8 power factor leading has full load efficiency of 91%. The armature resistance is equal to 0.08Ω. The magnitude of armature current is nearly equal to 240 A. 127 A. 173 A. 190 A. 240 A. 127 A. 173 A. 190 A. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Exciting current of an induction motor is none of these. lesser than power transformer. higher than power transformer. equal as power transformer. none of these. lesser than power transformer. higher than power transformer. equal as power transformer. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 4 pole 50 Hz induction motor is running at 1470 rpm. The frequency of rotor current is 0 Hz 50 Hz 5 Hz 1 Hz 0 Hz 50 Hz 5 Hz 1 Hz ANSWER DOWNLOAD EXAMIANS APP
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