Power Systems A hydro electric generating station is supplied from a reservoir of capacity 5 × 10 − 6 cubic meters at a head of 200 meters. Find the total energy available in KWh if the overall efficiency is 75 % 3 × 106 kWh. 2.044 × 106 kWh. 4.06 × 106 kWh. 5 × 106 kWh. 3 × 106 kWh. 2.044 × 106 kWh. 4.06 × 106 kWh. 5 × 106 kWh. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A diesel power plant is generally used as a/an Any of above. Standby/emergency plant. Base load. Peak loads. Any of above. Standby/emergency plant. Base load. Peak loads. ANSWER DOWNLOAD EXAMIANS APP
Power Systems If the time of operation of a relay for unity TMS is 10 sec. the time of operation of 0.5 TMS will be _______________ secs. 7. 5. 20. 3. 7. 5. 20. 3. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A load centre is at an equidistant from the two thermal generating stations G1 and G2. The fuel cost characteristics of the generating stations are given by F1 = a + bP1 + cP²1 F2 = a + b P2 + 2cP²2 Where P1 and P2 are the generation in MW of G1 and G2, respectively. For most economic generation to meet 300 MW of load, P1 and P2 respectively, are 200, 100 175, 125 100, 200 150, 150 200, 100 175, 125 100, 200 150, 150 ANSWER DOWNLOAD EXAMIANS APP
Power Systems In hydroelectric power plants both operating and initial cost are low. operating cost is high and initial cost is low. operating cost is low and initial cost is high. both operating and initial cost are high. both operating and initial cost are low. operating cost is high and initial cost is low. operating cost is low and initial cost is high. both operating and initial cost are high. ANSWER DOWNLOAD EXAMIANS APP
Power Systems An unloaded generator with a pre-fault voltage 1 pu has the following sequence impedance: Z0 = j 0.15 pu, Z1 = Z2 = j 0.25 pu The neutral is grounded with a reactance of 0.05 pu. The fault current in pu for single line to ground fault is 7.25 pu 2.5 pu 4.28 pu 3.75 pu 7.25 pu 2.5 pu 4.28 pu 3.75 pu ANSWER DOWNLOAD EXAMIANS APP
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