Alternators The speed of an alternator is changed from 3000 rpm to 1500 rpm. The generated emf/phase will become Half One fourth Unchanged Double Half One fourth Unchanged Double ANSWER DOWNLOAD EXAMIANS APP
Alternators The magnitude of emf generated by an alternators depends on ______ Rotor speed Flux per pole All of the listed here Number of poles Rotor speed Flux per pole All of the listed here Number of poles ANSWER DOWNLOAD EXAMIANS APP
Alternators Voltage regulation of an alternator is usually Much lower than that of power transformer Much higher than that of a power transformer Equal to that of power transformer None of the listed here Much lower than that of power transformer Much higher than that of a power transformer Equal to that of power transformer None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Alternators An under excited alternator supplies _______ No reactive power Lagging VAR None of the listed here Leading VAR No reactive power Lagging VAR None of the listed here Leading VAR ANSWER DOWNLOAD EXAMIANS APP
Alternators Modern 3-phase alternator of a central power station will have generated voltage of 230 V 400 V 11 kV 132 kV 230 V 400 V 11 kV 132 kV ANSWER DOWNLOAD EXAMIANS APP
Alternators The distribution of load between two alternators operating in parallel can be changed by changing ______ Field excitation of alternators Phase sequence None of the listed here Driving torques of prime movers Field excitation of alternators Phase sequence None of the listed here Driving torques of prime movers ANSWER DOWNLOAD EXAMIANS APP
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