Power Systems Which of the following matrix is used for load flow studies? Y bus matrix Z bus matrix null matrix Unit matrix Y bus matrix Z bus matrix null matrix Unit matrix ANSWER DOWNLOAD EXAMIANS APP
Power Systems The corona loss on a particular system at 60 Hz is 1 kW/km per phase. What is the corona loss at 50 Hz in kW/km per phase? 1 0.882 0.93 1.13 1 0.882 0.93 1.13 ANSWER DOWNLOAD EXAMIANS APP
Power Systems The pu parameters for a 500 MVA machine on its own base are: Inertia, H = 20 pu; reactance X = 2 pu. The pu values of inertia and reactance on 100 MVA common base, respectively, are 100, 10 100, 0.4 4, 10 4, 0.4 100, 10 100, 0.4 4, 10 4, 0.4 ANSWER DOWNLOAD EXAMIANS APP
Power Systems Find the characteristic impedance of a transmission line, if impedance is 16 Ω and admittance is 0.1 m℧? 200 Ω 160 Ω 400 Ω 320 Ω 200 Ω 160 Ω 400 Ω 320 Ω ANSWER DOWNLOAD EXAMIANS APP
Power Systems Where the voltage is high and current to be interrupted is low, Which of following the breaker is preferable? Any of these. Vacuum CB. Oil CB. Air blast CB. Any of these. Vacuum CB. Oil CB. Air blast CB. ANSWER DOWNLOAD EXAMIANS APP
Power Systems For 132 kV system, the reactance and capacitance up to the location of the CB is 3 Ω and 0.015 μF respectively. The maximum value of RRRV is 12.2 kV / μs. 2.0 kV / μs. 9.01 kV / μs. 10.01 kV / μs. 12.2 kV / μs. 2.0 kV / μs. 9.01 kV / μs. 10.01 kV / μs. ANSWER DOWNLOAD EXAMIANS APP
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