Power Systems A transmission line is compensated with shunt capacitance Csh. If the uncompensated transmission line surge impedance is Zs, then find the new surge impedance Zn after shunt compensation? Zs/√(1 + Kcsh) All of these Zs*√(1 + Kcsh) √(1 + Kcsh)/Zs Zs/√(1 + Kcsh) All of these Zs*√(1 + Kcsh) √(1 + Kcsh)/Zs 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? 1500 Ω 2000 Ω 3000 Ω 500 Ω 1500 Ω 2000 Ω 3000 Ω 500 Ω ANSWER DOWNLOAD EXAMIANS APP
Power Systems A loss less transmission line has a length of 600 km, find the phase shift of voltage signal? 42° 36° 90° 45° 42° 36° 90° 45° ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following relays is/are unit protection relays? Differential relays Buccholz relays over current relays both 1 and 2 Differential relays Buccholz relays over current relays both 1 and 2 ANSWER DOWNLOAD EXAMIANS APP
Power Systems A hydroelectric power station is commonly found in hilly areas. swamps. desert areas. grasslands. hilly areas. swamps. desert areas. grasslands. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Pin insulators are used up to 11 kV any voltage level 33 kV 120 kV 11 kV any voltage level 33 kV 120 kV ANSWER DOWNLOAD EXAMIANS APP
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