Power Systems A transmission line has a surge impedance of 400 Ω for a length of the line of 200 km. If the length of line is increased to 400 km, then its surge impedance is 0 Ω 400 Ω 200 Ω 800 Ω 0 Ω 400 Ω 200 Ω 800 Ω ANSWER DOWNLOAD EXAMIANS APP
Power Systems A power system network has n nodes, Z33 of its bus impedance matrix is j0.5 pu. The voltage at node 3 is 1.3∠ -10°. If capacitor is having reactance of -j3.5 pu is now added to the network between node 3 and reference node, the current drawn by the capacitor in pu is 0.371∠ -100° 0.325∠ -100° 0.433∠ 80° 0.725∠ 80° 0.371∠ -100° 0.325∠ -100° 0.433∠ 80° 0.725∠ 80° ANSWER DOWNLOAD EXAMIANS APP
Power Systems Surge impedance loading can be increased by increasing of capacitance value both 1 and 2 increasing of voltage level increasing of inductance value increasing of capacitance value both 1 and 2 increasing of voltage level increasing of inductance value ANSWER DOWNLOAD EXAMIANS APP
Power Systems A generating station has a maximum demand of 100 MW, a load factor of 60% and a plant capacity factor of 50%. The reserve capacity of the plant is 80 MW 15 MW 10 MW 20 MW 80 MW 15 MW 10 MW 20 MW ANSWER DOWNLOAD EXAMIANS APP
Power Systems Sum of the elements of row i equal to shunt admittances connected to bus i. If this summation is zero, indicates there is no None of these both 1 and 2 mutual coupling shunt admittance None of these both 1 and 2 mutual coupling shunt admittance ANSWER DOWNLOAD EXAMIANS APP
Power Systems What is the approximate efficiency of a normal thermal power station? 30-40% 45-55% 20-25% 60-70% 30-40% 45-55% 20-25% 60-70% ANSWER DOWNLOAD EXAMIANS APP
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