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 500 250 900 450 500 250 900 450 ANSWER DOWNLOAD EXAMIANS APP
Power Systems A cable has the following characteristics, L = 0.201 µH/m and C = 196.2 pF/m. The velocity of wave propagation through cable is 159.24 m/µs 32 m/s 159.24 m/s 0.0312 m/s 159.24 m/µs 32 m/s 159.24 m/s 0.0312 m/s ANSWER DOWNLOAD EXAMIANS APP
Power Systems In a 3-phase transmission line, each phase is supported by 3 insulated discs, maximum voltage of each disc is 20 kV. Find the operating voltage of the transmission line per phase if efficiency of string is 80.6%. 83.76 kV 52.84 kV 48.36 kV 20 kV 83.76 kV 52.84 kV 48.36 kV 20 kV ANSWER DOWNLOAD EXAMIANS APP
Power Systems Critical disruptive voltage is a voltage at which corona is just initiated corona is visible with blue or violet colour both 1 and 2 nether 1 nor 2 corona is just initiated corona is visible with blue or violet colour both 1 and 2 nether 1 nor 2 ANSWER DOWNLOAD EXAMIANS APP
Power Systems What are the tests performed for oil-filled and gas-filled cables ? Thermal stability test. Impulse tests. All of these. Load cycle tests. Thermal stability test. Impulse tests. All of these. Load cycle tests. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The charging current of a 400 kV line is more than that of a 220 kV line of the same length? None of these either 1 or 2 True False None of these either 1 or 2 True False ANSWER DOWNLOAD EXAMIANS APP
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