Electrical Machines Which of the following voltage regulator is preferred for providing large values of load current? Zener diode shunt regulator. Transistor series regulator. Transistor shunt regulator. None of these Zener diode shunt regulator. Transistor series regulator. Transistor shunt regulator. None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The result of slip test on a 3-phase, 20 KVA, 400 V, 50 Hz connected salient pole alternator is given below- Phase value: Vmax = 100 V, Vmin = 96 V, Imax = 10 A and I min = 7 A. The direct and quadranature axis reactances are respectively 8.248 and 5.54 Ω. 14.28 and 9.60 Ω. 8.248 and 9.60 Ω. 14.28 and 5.54 Ω. 8.248 and 5.54 Ω. 14.28 and 9.60 Ω. 8.248 and 9.60 Ω. 14.28 and 5.54 Ω. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Wave winding is prefered for which of the following rating? high current and high voltage low current and high voltage high current and low voltage low current and low voltage high current and high voltage low current and high voltage high current and low voltage low current and low voltage ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For a 3-phase, 4 pole, 50 Hz synchronous motor the frequency, pole number and the frequency are halved. The motor speed will be 375 rpm 1500 rpm 3000 rpm 75 rpm 375 rpm 1500 rpm 3000 rpm 75 rpm ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The core flux in transformer depends mainly on supply voltage and frequency supply voltage, frequency and load supply voltage supply voltage and load supply voltage and frequency supply voltage, frequency and load supply voltage supply voltage and load ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The rotor power output of 3-phase induction motor is 15 KW. The rotor copper losses at a slip of 4% will be 625 W 650 W 600 W 700 W 625 W 650 W 600 W 700 W ANSWER DOWNLOAD EXAMIANS APP
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