Power Systems On a power system network the load is increasing represents the value of impedance increase. remains constant. decrease. none of above. increase. remains constant. decrease. none of above. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The generating station suitable to operate as peak load plant is Pumped storage. Power station. Nuclear power station. Thermal power station. Pumped storage. Power station. Nuclear power station. Thermal power station. ANSWER DOWNLOAD EXAMIANS APP
Power Systems On what factor does the performance of a circuit breaker depend? Breaking speed. Critical length of breaking. Both A and C. None of these. Breaking speed. Critical length of breaking. Both A and C. None of these. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Skin effective is more in case of communication lines None of these same in both cases power lines communication lines None of these same in both cases power lines ANSWER DOWNLOAD EXAMIANS APP
Power Systems A lossless power system has to serve a load of 250 MW. There are two generators(G1 and G2) in the system with cost curves C1 and C2 respectively defined as follows: C1 = PG1+0.055P²G1 C2 = 3 PG2 + 0.03 P²G2 Where PG1 and PG2 are the MW injections from generators G1 and G2 respectively. Thus, the minimum cost dispatch will be PG1 = 0 MW and PG2 = 250 MW PG1 = 100 MW and PG2 = 150 MW PG1 = 150 MW and PG2 = 100 MW PG1 = 250 MW and PG2 = 0 MW PG1 = 0 MW and PG2 = 250 MW PG1 = 100 MW and PG2 = 150 MW PG1 = 150 MW and PG2 = 100 MW PG1 = 250 MW and PG2 = 0 MW ANSWER DOWNLOAD EXAMIANS APP
Power Systems A 3-phase, 110 kV coaxial XLPE insulated power cable delivering power at 50 Hz, has a capacitance of 125 nF/km. If the dielectric loss tangent of XLPE is 2*10^-4, then dielcetric power loss in this cable in W/km/phase is 31.7 23.9 38.6 35.45 31.7 23.9 38.6 35.45 ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS