Power Systems Fault calculations using computer are usually done by Y bus method Z bus method None of these either 1 or 2 Y bus method Z bus method None of these either 1 or 2 ANSWER DOWNLOAD EXAMIANS APP
Power Systems A 3 - Φ, 33 kV oil circuit breaker is rated 1200 A, 2000 MVA, 3 s. The symmetrical breaking current is 35 kA. 3600 A. 104.8 kA. 1200 A. 35 kA. 3600 A. 104.8 kA. 1200 A. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Surge impedance loading of a line is increased by which of the following compensation methods? shunt capacitor shunt reactor series capacitor both 1 and 2 shunt capacitor shunt reactor series capacitor both 1 and 2 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 = 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 PG1 = 0 MW and PG2 = 250 MW ANSWER DOWNLOAD EXAMIANS APP
Power Systems One atomic mass unit is equivalent to 251.2 MeV. 931.4 MeV. 180.5 MeV. 120.4 MeV. 251.2 MeV. 931.4 MeV. 180.5 MeV. 120.4 MeV. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A 20 MVA generator has inertia constant of 0.5 pu. Find new value for 50 MVA base? 0.1 pu 0.5 pu 0.2 pu 0.4 pu 0.1 pu 0.5 pu 0.2 pu 0.4 pu ANSWER DOWNLOAD EXAMIANS APP
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