Power Systems A 3 - Φ, 33 kV oil circuit breaker is rated 1200 A, 2000 MVA, 3 s. The symmetrical breaking current is 1200 A. 104.8 kA. 35 kA. 3600 A. 1200 A. 104.8 kA. 35 kA. 3600 A. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Surge tank is kept very close to the pen stock turbine spill way generator pen stock turbine spill way generator ANSWER DOWNLOAD EXAMIANS APP
Power Systems A thermal power station needs space less than that required by atomic power station of the same output. less than that required by the diesel power station of same output. less than that required by hydro-power station of same capacity. less than that required by a gas turbine power plant of same output. less than that required by atomic power station of the same output. less than that required by the diesel power station of same output. less than that required by hydro-power station of same capacity. less than that required by a gas turbine power plant of same output. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A load centre is at an equidistant from the two thermal generating stations G1 and G2. The fuel cost characteristics of the generating stations are given by F1 = a + bP1 + cP²1 F2 = a + b P2 + 2cP²2 Where P1 and P2 are the generation in MW of G1 and G2, respectively. For most economic generation to meet 300 MW of load, P1 and P2 respectively, are 150, 150 100, 200 200, 100 175, 125 150, 150 100, 200 200, 100 175, 125 ANSWER DOWNLOAD EXAMIANS APP
Power Systems The voltage and current instantaneous values are given as 5 sin (ωt + 30°) pu and 2 sin (ωt - 15°) pu respectively. Find the per unit active power? 7 pu 5 pu 5.353 pu 3.535 pu 7 pu 5 pu 5.353 pu 3.535 pu ANSWER DOWNLOAD EXAMIANS APP
Power Systems A transmission line has 200 km operating at frequency of 10 Hz Hz. Find the type of the line any of the above short transmission line long transmission line medium transmission line any of the above short transmission line long transmission line medium transmission line ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS