Electrical Machines A shunt generator is running at 1000 rpm. If flux is reduced by half, then what is the new speed? 2000. 1000. 0. 500. 2000. 1000. 0. 500. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The synchronous reactance( Xs) is the combined reactance due to armature reaction and leakage flux reactance either due to armature reaction or leakage flux reactance due to armature reaction of the machine reactance due to leakage flux combined reactance due to armature reaction and leakage flux reactance either due to armature reaction or leakage flux reactance due to armature reaction of the machine reactance due to leakage flux ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Direct-on-line (DOL) starters are not suitable for starting large DC motors, because the motor may not start. the motor may run away. the starting torque becomes low. the starting current will be enormously high. the motor may not start. the motor may run away. the starting torque becomes low. the starting current will be enormously high. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the speed of a dc motor increases with load torque, then it is a permanent magnet motor differentially compounded motor comulatively compounded motor series motor permanent magnet motor differentially compounded motor comulatively compounded motor series motor ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines At what power factor, the voltage regulation of a transformer can be zero ? Zero power factor. Unity power factor. Lagging power factor. Leading power factor. Zero power factor. Unity power factor. Lagging power factor. Leading power factor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Number of tappings for each equalizer ring is equal to number of parallel paths. number of commutator segments. number of poles. number of pole pairs. number of parallel paths. number of commutator segments. number of poles. number of pole pairs. ANSWER DOWNLOAD EXAMIANS APP
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