Power Systems An over current relay, having a current setting of 125% connected to a supply circuit through a current transformer of ratio 400/5. The pick up value is 12.5 A 10 A 15 A 6.25 A 12.5 A 10 A 15 A 6.25 A ANSWER DOWNLOAD EXAMIANS APP
Power Systems Surge impedance loading can be increased by both 1 and 2 increasing of capacitance value increasing of inductance value increasing of voltage level both 1 and 2 increasing of capacitance value increasing of inductance value increasing of voltage level ANSWER DOWNLOAD EXAMIANS APP
Power Systems A 3-phase transmission line operating at Vs = 400 kV and has ABCD parameters A= D = 0.8∠0°, B = 100∠90° Ω, C = 0.5*10^-6∠90° ℧. Find the shunt reactor required for compensating ferranti effect? 500 Ω 1500 Ω 3000 Ω 2000 Ω 500 Ω 1500 Ω 3000 Ω 2000 Ω ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following is a reaction turbines Pelton turbine and Francis turbine. Francis turbine and Kaplan turbine. None of these. Kaplan and Pelton turbine. Pelton turbine and Francis turbine. Francis turbine and Kaplan turbine. None of these. Kaplan and Pelton turbine. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Gross head of an hydroelectric power station is the height of water level in the river where the storage is provided. the difference of water level between the level in storage and tail race. all of above. the height of water level in the river where the tail race is provided. the height of water level in the river where the storage is provided. the difference of water level between the level in storage and tail race. all of above. the height of water level in the river where the tail race is provided. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The load current in short circuit calculations are neglected because nether 1 nor 2 short circuit currents are greatly out of phase with load currents both 1 and 2 short circuit currents are much larger than load currents nether 1 nor 2 short circuit currents are greatly out of phase with load currents both 1 and 2 short circuit currents are much larger than load currents ANSWER DOWNLOAD EXAMIANS APP
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