Power Systems A 1- phase transmission line operating at 30 kV has radius of 1 cm and distance between conductors is 0.5 m. Assume m = δ =1, g = 21 kV/cm and frequency f = 50 Hz. Find the critical disruptive voltage? 82.15 kV/phase 17.32 kV/phase 34.64 kV/phase 41.075 kV/phase 82.15 kV/phase 17.32 kV/phase 34.64 kV/phase 41.075 kV/phase ANSWER DOWNLOAD EXAMIANS APP
Power Systems A thermal power station needs space 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 atomic power station of the same output. less than that required by hydro-power station of same capacity. 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 atomic power station of the same output. less than that required by hydro-power station of same capacity. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Advantage/s of per unit system as compare to absolute system? only one equation is required calculation time is less memory required is less All of these only one equation is required calculation time is less memory required is less All of these ANSWER DOWNLOAD EXAMIANS APP
Power Systems A generating station which has a high investment cost and low operating cost is usually operated as a Minimum load station. None of above. Peak load station. Base load station. Minimum load station. None of above. Peak load station. Base load station. ANSWER DOWNLOAD EXAMIANS APP
Power Systems In which of the following transmission lines capacitance effect is negligible? long transmission lines medium transmission lines shoart transmission lines both 1 and 3 long transmission lines medium transmission lines shoart transmission lines both 1 and 3 ANSWER DOWNLOAD EXAMIANS APP
Power Systems An over current relay, having a current setting of 125% connected to a supply circuit through a current transformer of ratio 500/5. The plug setting multiplier for a fault current of 5 kA is 8 2 6 5 8 2 6 5 ANSWER DOWNLOAD EXAMIANS APP
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