Power Systems Rankine cycle efficiency of a steam power plant is of 60 - 80 %. 20 - 30 %. 30 - 45 %. 45 - 80 %. 60 - 80 %. 20 - 30 %. 30 - 45 %. 45 - 80 %. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Load frequency control is achieved by properly matching the individual machines reactive powers. generator ratings. generated voltages. turbine inputs. reactive powers. generator ratings. generated voltages. turbine inputs. ANSWER DOWNLOAD EXAMIANS APP
Power Systems If a 500 MVA, 11 kV 3-phase generator at 50 Hz feeds through a transfer impedance of (0+j0.605) Ω/phase, an infinite voltage also at 11 kV, then the maximum steady state power transfer on the base of 500 MVA and 11 kV is 0.5 pu 1 pu 0.8 pu 0.4 pu 0.5 pu 1 pu 0.8 pu 0.4 pu ANSWER DOWNLOAD EXAMIANS APP
Power Systems Find the number of insulator discs required in string insulator, if operating voltage is 220 kV and maximum voltage of each disc is 11 kV? 10 20 21 13 10 20 21 13 ANSWER DOWNLOAD EXAMIANS APP
Power Systems If power P available from a hydroelectric plant is given by the formula P = 9.81QH, where Q is the flow rate through the turbine in l / s and H is the head in meters, then P will be unit of kJ / S. HP. kWh. W. kJ / S. HP. kWh. W. ANSWER DOWNLOAD EXAMIANS APP
Power Systems An over current relay, having a current setting of 125% connected to a supply circuit through a current transformer of ratio 500/5. The plug setting multiplier for a fault current of 5 kA is 6 2 8 5 6 2 8 5 ANSWER DOWNLOAD EXAMIANS APP
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