Electrical Machines Which of the following machines have highest power factor with respect to magnetizing current? Closed slot type machines. Open slot type machines. Semi closed slot type machine. Any of the above. Closed slot type machines. Open slot type machines. Semi closed slot type machine. Any of the above. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In which of the following generators negative voltage regulation can occur? series generators shunt generator both B and C over compound generator series generators shunt generator both B and C over compound generator ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The application that need frequent starting and stopping is jaw crushers. lifts and hoists. blowers. paper mills. jaw crushers. lifts and hoists. blowers. paper mills. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines 1 KVA, 230 V, 50 Hz, single phase transformer has an eddy current loss of 30 watts. The eddy current loss when the transformer is excited by a dc source of same voltage will be 30 W more than 30 W less than 30 W zero watt 30 W more than 30 W less than 30 W zero watt ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The rotor of a three phase induction motor has an impedance of 0.4 + j4 ohm per phase at standstill the maximum torque occurs at a slip of _____________. 50 %. 15 %. 25 %. 10 %. 50 %. 15 %. 25 %. 10 %. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Inter pole winding is connected in-------------------------- ? series with main poles series with armature parallel with main poles parallel with armature series with main poles series with armature parallel with main poles parallel with armature ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS