Synchronous Motors Most of the synchronous motors are _______ power factor metors. Unity 0.8 leading 0.5 leading 0.8 lagging Unity 0.8 leading 0.5 leading 0.8 lagging ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A 50 Hz synchronous motor runs at 200 rpm. The number of salient poles on the rotor are______ None of the listed here 16 30 36 None of the listed here 16 30 36 ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The rotor of a synchronous motor is Salient pole type Nonsalient pole type Identical to that of a dc motor None of the listed here Salient pole type Nonsalient pole type Identical to that of a dc motor None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors When a unity pf synchronous motor is operated at a leading pf, it results in _______ More than rated horseppwer output None of the listed here Less than rated horsepower output More than rated rotor current More than rated horseppwer output None of the listed here Less than rated horsepower output More than rated rotor current ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A synchronous machine with large air gap has a higher value of stability limit a small value of inherent regulation all of the listed here a higher synchronizing power which makes the machine less sensitive to load variations a higher value of stability limit a small value of inherent regulation all of the listed here a higher synchronizing power which makes the machine less sensitive to load variations ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors When load on an over-excited or under excited synchronous motor is increased, rate of change of its armature current as compared with that of power factor is less more twice equal less more twice equal ANSWER DOWNLOAD EXAMIANS APP
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