Electrical Machines The application that need frequent starting and stopping is paper mills. lifts and hoists. jaw crushers. blowers. paper mills. lifts and hoists. jaw crushers. blowers. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a synchronous machine, if the field flux axis is ahead of the armature field axis in the direction of rotation, the machine operating is synchronous generator. asynchronous generator. synchronous motor. asynchronous motor. synchronous generator. asynchronous generator. synchronous motor. asynchronous motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 3 - Φ induction motor draws an current of 50 A from mains when starts by direct switching. If an auto transformer with 60 % tapping is used for starting the current drawn from the mains will be 50. 36. 18. 80. 50. 36. 18. 80. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the excitation is critical, the power factor of the alternator is unity power factor. leading power factor. None of these lagging power factor. unity power factor. leading power factor. None of these lagging power factor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Normally for the design of transformer the ambient temperature is taken as 35°C. 27°C. 45°C. 32°C. 35°C. 27°C. 45°C. 32°C. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In star-delta starting of squirrel cage induction motor compared to DOL starting the starting current and torque are 1/√3, 1/√3 1/√3, 1/3 1/3, 1/3 1/3, 1/√3 1/√3, 1/√3 1/√3, 1/3 1/3, 1/3 1/3, 1/√3 ANSWER DOWNLOAD EXAMIANS APP
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