Power Systems The water from a catchment is 60*106 cu m annually and hydro station has head of 40 m. Assuming ideal generator and turbine, the power that can be theoretically generated is 300 kW 250 kW 500 kW 750 kW 300 kW 250 kW 500 kW 750 kW ANSWER DOWNLOAD EXAMIANS APP
Power Systems The pickup value of relay is 6.5 Amp and fault current in relay coil is 39 Amp. Its plug setting multiplier is 7 A. 10 A. 6 A. 8 A. 7 A. 10 A. 6 A. 8 A. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A 3-phase breaker is rated at 2000 MVA, 33 kV, its making current will be 35 kVA. 89.22 kVA. 70 kVA. 49 kVA. 35 kVA. 89.22 kVA. 70 kVA. 49 kVA. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A fault occurring at the terminals of an unloaded synchronous generator operating at its rated voltage has resulted in the following values of currents and voltages. IR0 = j 2.37 pu IR1 = -j 3.05 pu IR2 = j 0.68 pu VR0 = VR1 = VR2 = 0.237 pu. Which of the following faults has occurred? LLG LG LL LLL LLG LG LL LLL ANSWER DOWNLOAD EXAMIANS APP
Power Systems In hydroelectric power plants both operating and initial cost are high. operating cost is low and initial cost is high. operating cost is high and initial cost is low. both operating and initial cost are low. both operating and initial cost are high. operating cost is low and initial cost is high. operating cost is high and initial cost is low. both operating and initial cost are low. ANSWER DOWNLOAD EXAMIANS APP
Power Systems What will be the thermal efficiency of a 240 V, 1000 W electric kettle if it brings 2 liters of water at 15° C to boiling point 15 Minutes 80.25 %. 79.33 %. 78.96 %. 74.56 %. 80.25 %. 79.33 %. 78.96 %. 74.56 %. ANSWER DOWNLOAD EXAMIANS APP
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