Power Systems The Y bus matrix of 100 bus interconnected system is 90% sparse. Hence the number of transmission lines in the system must be 450 250 500 900 450 250 500 900 ANSWER DOWNLOAD EXAMIANS APP
Power Systems An hydro-graph indicates the maximum and minimum run off during the period. the discharge at any time during the period under consideration. the average run off during the period. All of these the maximum and minimum run off during the period. the discharge at any time during the period under consideration. the average run off during the period. All of these ANSWER DOWNLOAD EXAMIANS APP
Power Systems For n bus power system size of Y bus matrix is n×n (n-1)×(n-2) (n-1)×(n-1) (n-2)×(n-2) n×n (n-1)×(n-2) (n-1)×(n-1) (n-2)×(n-2) ANSWER DOWNLOAD EXAMIANS APP
Power Systems What type of back up protection is used for alternators? Impedance relay. IDMT relay. Buchholz relay. Mho relay. Impedance relay. IDMT relay. Buchholz relay. Mho relay. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A three phase, 33 kV oil circuit breaker is rated 1200 A, the symmetrical breaking capacity is 2000 MVA, 3 secs. Then the making capacity is 5200 MVA. 5100 MVA. 5000 MVA. 5500 MVA. 5200 MVA. 5100 MVA. 5000 MVA. 5500 MVA. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The inertia constant of 100 MVA, 50 Hz, 4 pole generator is 10 MJ/MVA. If the mechanical input to the machine is suddenly raised from 50 MW to 75 MW, the rotor acceleration will be equal to 22.5 electrical degrees/s² 125 electrical degrees/s² 225 electrical degrees/s² 12.5 electrical degrees/s² 22.5 electrical degrees/s² 125 electrical degrees/s² 225 electrical degrees/s² 12.5 electrical degrees/s² ANSWER DOWNLOAD EXAMIANS APP
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