Electrical Machines Voltage regulation can be determined by which of the following? ZPF method. MMf method. All of these Synchronous impedance method. ZPF method. MMf method. All of these Synchronous impedance method. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Universal motor have which of the following application? Domestic pump. Traction. Food mixer. Lift. Domestic pump. Traction. Food mixer. Lift. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Minimum allowable resistivity of power transformer insulating oil is generally taken as 1 X 1012 Ω - cm at 27°C and 0.1 X 1012 3 X 1012 Ω - cm at 27°C and 0.3 X 1012 2 X 1012 Ω - cm at 27°C and 0.2 X 1012 4 X 1012 Ω - cm at 27°C and 0.4 X 1012 1 X 1012 Ω - cm at 27°C and 0.1 X 1012 3 X 1012 Ω - cm at 27°C and 0.3 X 1012 2 X 1012 Ω - cm at 27°C and 0.2 X 1012 4 X 1012 Ω - cm at 27°C and 0.4 X 1012 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following is/are effects of armature reaction? increase the maintenance and repair All of these increase the iron loss increases the design cost increase the maintenance and repair All of these increase the iron loss increases the design cost ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Rotating magnetic field is produced in an induction motor because of stator winding. either stator winding or rotor winding. None of these rotor winding. stator winding. either stator winding or rotor winding. None of these rotor winding. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 400 V, 50 Hz, 30 Hp, three phase IM is drawing 50 A current at 0.8 p.f lagging. The stator and rotor copper losses are 1.5 KW and 900 W respectively. The friction and windage losses are 1050 W and core losses are 1200 W. The air gap power of the motor will be 24.11 kW. 23.06 kW. 25 kW. 26.21 kW. 24.11 kW. 23.06 kW. 25 kW. 26.21 kW. ANSWER DOWNLOAD EXAMIANS APP
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