Power Systems The corona loss on a particular system at 60 Hz is 1 kW/km per phase. What is the corona loss at 50 Hz in kW/km per phase? 0.882 1 1.13 0.93 0.882 1 1.13 0.93 ANSWER DOWNLOAD EXAMIANS APP
Power Systems The value of inductance used for compensation of arcing grounds is 3ω²C 1/3ω²C 3/ω²C ω²C/3 3ω²C 1/3ω²C 3/ω²C ω²C/3 ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following faults is/are treated as external faults? Over voltage Failure of excitation Failure of prime mover of the generator All of these Over voltage Failure of excitation Failure of prime mover of the generator All of these ANSWER DOWNLOAD EXAMIANS APP
Power Systems Gross head of an hydroelectric power station is all of above. the difference of water level between the level in storage and tail race. the height of water level in the river where the storage is provided. the height of water level in the river where the tail race is provided. all of above. the difference of water level between the level in storage and tail race. the height of water level in the river where the storage is provided. the height of water level in the river where the tail race is provided. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following methods is/are used for reactive or voltage compensation All of these shunt capacitor series capacitor generation excitation control All of these shunt capacitor series capacitor generation excitation control ANSWER DOWNLOAD EXAMIANS APP
Power Systems A 3-phase, 110 kV coaxial XLPE insulated power cable delivering power at 50 Hz, has a capacitance of 125 nF/km. If the dielectric loss tangent of XLPE is 2*10^-4, then dielcetric power loss in this cable in W/km/phase is 31.7 38.6 35.45 23.9 31.7 38.6 35.45 23.9 ANSWER DOWNLOAD EXAMIANS APP
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