Electrical Machines The power input to a 3 - φ induction motor is 60 kW and stator loss is 1 kW the rotor cu loss per phase is slip X 69 / 3. slip X 59 / 3. 1. slip X 50 / 3. slip X 69 / 3. slip X 59 / 3. 1. slip X 50 / 3. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What will be the maximum power factor of an induction motor for dispersion coefficient of 0.05? 0.905. 20. 0.05. 1.1. 0.905. 20. 0.05. 1.1. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines An inverted V-curve of synchronous motor shows the variation of All of these power factor and supply voltage during hunting power factor and dc excitation at constant load supply voltage and field current at constant excitation All of these power factor and supply voltage during hunting power factor and dc excitation at constant load supply voltage and field current at constant excitation ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If in a sub – station there is one 132 / 33 kV transformer whose secondary is connected with primary of one 33 / 11 kV transformer, the total transformation ratio of the sub – station will be, 3. 4. 12. 7. 3. 4. 12. 7. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which type of single phase induction motor is having the highest power factor at full load ? Capacitor run type. Capacitor start. Shaded pole type. Split phase type. Capacitor run type. Capacitor start. Shaded pole type. Split phase type. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a 3-phase induction motor, if the supply voltage and frequency are reduced by the same ratio, then slip at which maximum torque occurs is more and maximum torque decreases more and maximum torque remains constant less and maximum torque increases less and maximum torque decreases more and maximum torque decreases more and maximum torque remains constant less and maximum torque increases less and maximum torque decreases ANSWER DOWNLOAD EXAMIANS APP
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