Synchronous Motors The construction of a synchronous motor resembles an induction motor an alternator a rotary converter a series motor an induction motor an alternator a rotary converter a series motor ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A synchronous motor delivers reactive power when ______ Normally excited Under excited Over excited None of the listed here Normally excited Under excited Over excited None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The back e.m.f. of a synchronous motor depends on load angle load All of these speed load angle load All of these speed ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors An under excited synchronous motor behaves as_______ An inductor A resistor None of the listed here A capacitor An inductor A resistor None of the listed here A capacitor ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors When a unity pf synchronous motor is operated at a leading pf, it results in _______ None of the listed here More than rated horseppwer output Less than rated horsepower output More than rated rotor current None of the listed here More than rated horseppwer output Less than rated horsepower output More than rated rotor current ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A synchronous motor connected to infinite bus-bars has at constant full load, 100% excitation and unity power factor. On changing the excitation only, the armature current will have leading power factor with over-excitation lagging power factor with over-excitation no change of power factor leading power factor with under-excitation leading power factor with over-excitation lagging power factor with over-excitation no change of power factor leading power factor with under-excitation ANSWER DOWNLOAD EXAMIANS APP
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