Power Systems A 100 MVA alternator operating at full load at 50 Hz. H = 4 MWsec/MVA, Td = 0.5 sec. One of the transmission line is tripped. So that output of generator is reduced to 70 MW. Find the frequency deviation during this time? -0.56 0.92 0.56 -0.92 -0.56 0.92 0.56 -0.92 ANSWER DOWNLOAD EXAMIANS APP
Power Systems Mho relay is used for protection of short lines. none of these. long lines. medium lines. short lines. none of these. long lines. medium lines. ANSWER DOWNLOAD EXAMIANS APP
Power Systems In a three-phase system, when the loads are perfectly balanced, the neutral current is one - third of minimum. one - third of maximum. two - thirds of maximum. zero. one - third of minimum. one - third of maximum. two - thirds of maximum. zero. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The draw back of NR method as compare to Gauss-Seidel method is/are? large number of iterations both 1 and 2 large requirement of computer memory None of these large number of iterations both 1 and 2 large requirement of computer memory None of these ANSWER DOWNLOAD EXAMIANS APP
Power Systems A sort line with R/X ratio 1, the zero regulation is obtained when the power factor of the load is 0.707 leading 0 leading 0.5 unity 0.707 leading 0 leading 0.5 unity ANSWER DOWNLOAD EXAMIANS APP
Power Systems If L and C are 4 mH and 0.0001 μF respectively a current chop of magnitude 50 Amp would induced a voltage 400 kV. 50 kV. 200 kV. 100 kV. 400 kV. 50 kV. 200 kV. 100 kV. ANSWER DOWNLOAD EXAMIANS APP
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