Power Systems A transmission line has an impedance of (2+j6) Ω has voltage regulation of 10% at a load power factor of 0.8 lag. Find the voltage regulation for a load of 0.6 lead -10% 6.92% -6.92% 10% -10% 6.92% -6.92% 10% ANSWER DOWNLOAD EXAMIANS APP
Power Systems What will be the ratio of the C.T. on the H.V side of a 3 - φ star / delta 33 / 11 kV transformer if the protecting CT on the LV side has a ratio of 300 : 5 ? 200 : 5 / √3. 100 : 5 / √3. 150 : 4 / √3. 120 : 6 / √3. 200 : 5 / √3. 100 : 5 / √3. 150 : 4 / √3. 120 : 6 / √3. ANSWER DOWNLOAD EXAMIANS APP
Power Systems If, for a given alternator in economic operation mode, the incremental cost is given by (0.012 P + 8) Rs/MWh, dPL/dP = 0.2 and plant λ = 25, then power generation is 1000 MW 1500 MW 750 MW 1250 MW 1000 MW 1500 MW 750 MW 1250 MW ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following plants is/are base load plants both 1 and 2 run off river pump storage nuclear both 1 and 2 run off river pump storage nuclear ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following relays is/are unit protection relays? both 1 and 2 Differential relays Buccholz relays over current relays both 1 and 2 Differential relays Buccholz relays over current relays ANSWER DOWNLOAD EXAMIANS APP
Power Systems The voltage regulation of a line at full load 0.8 power factor is 11. A long transmission line under no load conditions, for a good voltage profile needs All of these shunt reactor at receiving end shunt capacitor at receiving end shunt resistance at receiving end All of these shunt reactor at receiving end shunt capacitor at receiving end shunt resistance at receiving end ANSWER DOWNLOAD EXAMIANS APP
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