Power Systems A 20 MVA generator has inertia constant of 0.5 pu. Find new value for 50 MVA base? 0.4 pu 0.1 pu 0.2 pu 0.5 pu 0.4 pu 0.1 pu 0.2 pu 0.5 pu ANSWER DOWNLOAD EXAMIANS APP
Power Systems Ferranti effect can be compensated by which of the following both 1 and 2 shunt reactor shunt capacitor series capacitor both 1 and 2 shunt reactor shunt capacitor series capacitor ANSWER DOWNLOAD EXAMIANS APP
Power Systems A thermal power station needs space less than that required by a gas turbine power plant of same output. less than that required by hydro-power station of same capacity. 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 a gas turbine power plant of same output. less than that required by hydro-power station of same capacity. less than that required by atomic power station of the same output. less than that required by the diesel power station of same output. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A generator has reactances of sub transient (X")= 0.5 pu, transient (X') = 0.8 pu and synchronous reactance (X) = 5 pu. The voltages at these reactances are 1.2 V, 1.1 V and 1 V respectively. Find the corresponding sub transient fault current in pu? 2.4 pu 3.975 pu 0.2 pu 1.375 pu 2.4 pu 3.975 pu 0.2 pu 1.375 pu ANSWER DOWNLOAD EXAMIANS APP
Power Systems Half life is defined as the time required for full of atoms in a specimen disintegrate. none of above. the time required to spiliting of a heavy nucleus. the time required for one half of isotope to decay. the time required for full of atoms in a specimen disintegrate. none of above. the time required to spiliting of a heavy nucleus. the time required for one half of isotope to decay. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Surge impedance loading (SIL) is represented by Vl²/Zs Vl²*√(C/L) Vph²/Zs both 1 and 2 Vl²/Zs Vl²*√(C/L) Vph²/Zs both 1 and 2 ANSWER DOWNLOAD EXAMIANS APP
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