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 5100 MVA. 5200 MVA. 5000 MVA. 5500 MVA. 5100 MVA. 5200 MVA. 5000 MVA. 5500 MVA. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A transmission line has a surge impedance of 400 Ω is connected with the cable having surge impedance of 40 Ω, a surge magnitude of 100 kV is travelling from the transmission line towards the cable. Find the incident current? 250 A 200 A 2500 A 100 A 250 A 200 A 2500 A 100 A ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following statements is/are true? Due to corona, charging current increases All of these power loss increases interference increases charging current increases All of these power loss increases interference increases ANSWER DOWNLOAD EXAMIANS APP
Power Systems Half life is defined as the time required to spiliting of a heavy nucleus. the time required for one half of isotope to decay. none of above. the time required for full of atoms in a specimen disintegrate. the time required to spiliting of a heavy nucleus. the time required for one half of isotope to decay. none of above. the time required for full of atoms in a specimen disintegrate. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A power system consists of 300 buses out of which 20 buses are generator buses, 25 buses are the ones with reactive power support buses and 15 buses are ones with fixed shunt capacitors. All the other buses are load buses. It is proposed to perform a load flow analysis for the system using Newton-Raphson Jacobian matrix is 540×540 553×553 554×554 555×555 540×540 553×553 554×554 555×555 ANSWER DOWNLOAD EXAMIANS APP
Power Systems The SWR on a lossless transmission line of the characteristic impedance 100 ohm is 3. The line is the terminated by A resistance of 100 ohm. A resistance of 100/3 ohm. A resistance of j100/3 ohm. A resistance of j300 ohm. A resistance of 100 ohm. A resistance of 100/3 ohm. A resistance of j100/3 ohm. A resistance of j300 ohm. ANSWER DOWNLOAD EXAMIANS APP
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