Question 5 - Power Systems (Networks and Disturbances) a) List typical values of working voltages for Generation, Transm

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Question 5 Power Systems Networks And Disturbances A List Typical Values Of Working Voltages For Generation Transm 1 (46.49 KiB) Viewed 44 times

Question 5 - Power Systems (Networks and Disturbances) a) List typical values of working voltages for Generation, Transmission and Distribution seen in the UK (3 Marks) b) List the three factors which limits the capability of the transmission system to transfer power across a system boundary. (3 Marks) c) Draw and explain a grid network from generation to street mains, using a 11kV ring. (3 Marks) d) A line has a characteristic impedance of 307.79 and a termination resistance of 60092. Assume that the magnitudes of the initial forward – travelling voltage wave and current wave are 4000V and 13A, respectively. Determine the following: (1) Reflection coefficient of voltage wave. (ii) Reflection coefficient of current wave. (2 Marks) (2 Marks) (iii) Backward-travelling voltage wave. (iv)Voltage at end of line. (2 Marks) (2 Marks) (v) Transmission coefficient of voltage wave. (2 Marks) (vi) Backward-travelling current wave. (2 Marks) (vii) Current flowing through termination resistance. (2 Marks) (viii) Transmission coefficient of current wave.