Alternators The slip rings emplyod in a 3-phase alternator in hydro station are insulated for Very low voltage Full armature voltage Low voltage Extra high tension voltage Very low voltage Full armature voltage Low voltage Extra high tension voltage ANSWER DOWNLOAD EXAMIANS APP
Alternators The stator of an alternator rarely uses _____slots. Semi-closed type Closed type Wide open type None of the listed here Semi-closed type Closed type Wide open type None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Alternators Alternators, now a days, are designed to have poor regulation because It reduces the construction cost It limits the value of short circuit current None of the listed here We employ automatic voltage regulators It reduces the construction cost It limits the value of short circuit current None of the listed here We employ automatic voltage regulators ANSWER DOWNLOAD EXAMIANS APP
Alternators In an alternator, the effect of armature reaction is minimum at power factor of ______ Unity 0.866 lagging 0.5 lagging 0.866 leading Unity 0.866 lagging 0.5 lagging 0.866 leading ANSWER DOWNLOAD EXAMIANS APP
Alternators The speed of an alternator is changed from 3000 rpm to 1500 rpm. The generated emf/phase will become Unchanged One fourth Double Half Unchanged One fourth Double Half ANSWER DOWNLOAD EXAMIANS APP
Alternators In air-crafts, alternators have operating frequency of 60 Hz 50 Hz 500 Hz 400 Hz 60 Hz 50 Hz 500 Hz 400 Hz ANSWER DOWNLOAD EXAMIANS APP
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