Power Systems A transmission line has a reactance of 1 Pu is operating at Vs = Vr = 1 Pu. The generator is connected at source end which is delivering 0.5 Pu of active power. Find the load angle? 30° 60° 45° 35° 30° 60° 45° 35° ANSWER DOWNLOAD EXAMIANS APP
Power Systems For load flow studies, What are the quantities specified at load bus are P and Q V and δ P and V δ and Q P and Q V and δ P and V δ and Q ANSWER DOWNLOAD EXAMIANS APP
Power Systems What is the approximate efficiency of a normal thermal power station? 20-25% 60-70% 45-55% 30-40% 20-25% 60-70% 45-55% 30-40% ANSWER DOWNLOAD EXAMIANS APP
Power Systems Load frequency control is achieved by properly matching the individual machines generated voltages. turbine inputs. reactive powers. generator ratings. generated voltages. turbine inputs. reactive powers. generator ratings. 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 48.36 kV 20 kV 52.84 kV 83.76 kV 48.36 kV 20 kV 52.84 kV ANSWER DOWNLOAD EXAMIANS APP
Power Systems Reactance relays are used for the protection of long transmission lines only medium transmission lines only short transmission lines only All of these long transmission lines only medium transmission lines only short transmission lines only All of these ANSWER DOWNLOAD EXAMIANS APP
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