Power Systems The power generated by two plants are; P1 = 50 MW, P2 = 40 MW. If the loss coefficients are B11 = 0.001, B22 = 0.0025 and B12 = -0.0005, then power loss will be 6.5 MW 5.5 MW 4.5 MW 8.5 MW 6.5 MW 5.5 MW 4.5 MW 8.5 MW ANSWER DOWNLOAD EXAMIANS APP
Power Systems A transmission line has a surge impedance of 400 Ω is connected with the cable having surge impedance of 40 Ω, a surge magnitude of 100 kV is travelling from the transmission line towards the cable. Find the transmitted voltage? 36. 36 kV 100 kV 18.18 kV 30.6 Kv 36. 36 kV 100 kV 18.18 kV 30.6 Kv ANSWER DOWNLOAD EXAMIANS APP
Power Systems A thermal power plant is being supplied with coal having much more ash content than that for which it was designed. Which of its following units needs major modifications Condenser. Ash handling unit. Pulversing unit. Cooling tower. Condenser. Ash handling unit. Pulversing unit. Cooling tower. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following contributes to the Rankine cycle efficiency improvement in a thermal power plant Reheat of steam an intermediate stages. Use of high pressure. All of these Use of steam for heating of boiler feed water. Reheat of steam an intermediate stages. Use of high pressure. All of these Use of steam for heating of boiler feed water. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following relays is/are unit protection relays? Buccholz relays both 1 and 2 over current relays Differential relays Buccholz relays both 1 and 2 over current relays Differential relays ANSWER DOWNLOAD EXAMIANS APP
Power Systems A transmission line has impedance of (0.005 + j0.05) pu. Find the line at which maximum value of negative DC off set current is produced, if it is applied with Vm sinωt? 2.63 msec 1.47 msec 9.68 msec 4.68 msec 2.63 msec 1.47 msec 9.68 msec 4.68 msec ANSWER DOWNLOAD EXAMIANS APP
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