Power Systems The Y bus matrix of 100 bus interconnected system is 90% sparse. Hence the number of transmission lines in the system must be 450 900 500 250 450 900 500 250 ANSWER DOWNLOAD EXAMIANS APP
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 5500 MVA. 5200 MVA. 5000 MVA. 5100 MVA. 5500 MVA. 5200 MVA. 5000 MVA. 5100 MVA. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The angular moment of 10 MVA generator is 0.2. Find the new value of angular moment for 20 MVA base? 0.4 pu 0.25 pu 0.2 pu 0.1 pu 0.4 pu 0.25 pu 0.2 pu 0.1 pu ANSWER DOWNLOAD EXAMIANS APP
Power Systems The charging reactance of 50 km transmission line is 1500 Ω. What is the charging reactance for 100 km length of line? 750 Ω 1000 Ω 3000 Ω 1500 Ω 750 Ω 1000 Ω 3000 Ω 1500 Ω ANSWER DOWNLOAD EXAMIANS APP
Power Systems A three phase, 33 kV oil circuit breaker is rated 1200 A, 2000 MVA, 3 secs. The symmetrical breaking current is 35 kA. 55 kA. 50 kA. 45 kA. 35 kA. 55 kA. 50 kA. 45 kA. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A coal fired steam power station working at a plant factor of 80% has one 500 MW generating unit. If the heat content of coal is 2 kWh/kg, the overall plant efficiency is 40% and a train load of coal is 2000 metric tons, then the number of trains required daily for the plant is 16 2 10 6 16 2 10 6 ANSWER DOWNLOAD EXAMIANS APP
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