Alternators The speed of an alternator is changed from 3000 rpm to 1500 rpm. The generated emf/phase will become Double Unchanged Half One fourth Double Unchanged Half One fourth ANSWER DOWNLOAD EXAMIANS APP
Alternators When load on an alternator is increased, the terminal voltage increases if the load pf is ______ Unity Zero Lagging Leading Unity Zero Lagging Leading ANSWER DOWNLOAD EXAMIANS APP
Alternators Modern 3-phase alternator of a central power station will have generated voltage of 11 kV 400 V 132 kV 230 V 11 kV 400 V 132 kV 230 V ANSWER DOWNLOAD EXAMIANS APP
Alternators Zero power factor method for alternator is generally used to determine Efficiency of alternator Synchronous impedance of alternator Voltage regulation of the alternator None of the listed here Efficiency of alternator Synchronous impedance of alternator Voltage regulation of the alternator None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Alternators In a large generator, dampers Reduce voltage fluctuations Increase stability Reduce frequency fluctuations None of the listed here Reduce voltage fluctuations Increase stability Reduce frequency fluctuations None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Alternators An under excited alternator supplies _______ No reactive power Lagging VAR Leading VAR None of the listed here No reactive power Lagging VAR Leading VAR None of the listed here ANSWER DOWNLOAD EXAMIANS APP
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