Power Systems Buchholz relay is used for protection of alternator. bus bar. transformer. none of these. alternator. bus bar. transformer. none of these. ANSWER DOWNLOAD EXAMIANS APP
Power Systems In load flow studies PV bus is treated as PQ bus when any of the above voltage at the bus become high reactive power goes beyond limit phase angle become high any of the above voltage at the bus become high reactive power goes beyond limit phase angle become high ANSWER DOWNLOAD EXAMIANS APP
Power Systems The per unit value of a 2 ohm resistor at 100 MVA and 10 kV base voltage is 2 pu 0.5 pu 0.2 pu 4 pu 2 pu 0.5 pu 0.2 pu 4 pu ANSWER DOWNLOAD EXAMIANS APP
Power Systems If a fault occurs on any feeder, the fault current is much higher than with unsectional bus bar. much lower than with unsectional bus bar. equal to unsectional bus bar. none of these. much higher than with unsectional bus bar. much lower than with unsectional bus bar. equal to unsectional bus bar. none of these. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A transmission line has a surge impedance of 400 Ω for a length of the line of 200 km. If the length of line is increased to 400 km, then its surge impedance is 800 Ω 200 Ω 400 Ω 0 Ω 800 Ω 200 Ω 400 Ω 0 Ω 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 1500 MW 1000 MW 750 MW 1250 MW 1500 MW 1000 MW 750 MW 1250 MW ANSWER DOWNLOAD EXAMIANS APP
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