Electrical Machines A simple method of increasing the voltage of a DC generator is to increase the speed of shaft rotation. increase the number of turns in field coil. increase the number of turns in armature coil. increase the source frequency. increase the speed of shaft rotation. increase the number of turns in field coil. increase the number of turns in armature coil. increase the source frequency. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Hysteresis loss will depends on f³ f² f1.6 f f³ f² f1.6 f ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Swinburne test is conducted under which of the following condition? half load no load full load any of the above half load no load full load any of the above ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What happens if fifth multiples of harmonics is given to induction motor? It will rotates in normal operation. Either short circuit or open circuit occurs. Fail to start. It will rotates in reverse direction. It will rotates in normal operation. Either short circuit or open circuit occurs. Fail to start. It will rotates in reverse direction. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Commutator in DC generator is used for reduce losses collecting of current increase efficiency convert AC armature current in to DC reduce losses collecting of current increase efficiency convert AC armature current in to DC ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Regenerative braking is not found in which motor? DC shunt. Induction motor. DC series. DC compound. DC shunt. Induction motor. DC series. DC compound. ANSWER DOWNLOAD EXAMIANS APP
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