Question 5 A The Power Network Of The Isle Of Tranquillity Operates On An Ac Frequency Of 50hz 650 Km 404 Miles Away 1 (51.43 KiB) Viewed 45 times
Question 5 a) The power network of the Isle of Tranquillity operates on an AC frequency of 50Hz. 650 km (404 miles) away across the Blue Sea is the coastal city state of Angel, whose power network operates on an AC frequency of 60Hz. It has been decided to link the two countries power grids. What type of interconnecting system would you design and why? You may use diagrams to illustrate your answer. [5 Marks]
b) What type of circuit is shown below in Figure Q5.b)? Describe its operation. İL L i + Vs Vo Load CL Figure (5.b) c) The circuit shown in Figure Q5.c) below is a good approximation of a 50Hz AC transmission line, whose length is less than 250km (155 miles). Explain how this equivalent circuit can be further simplified for low voltage lines and for extra high voltage lines. [5 Marks] XL R 8 E TEXC 2 + VL KH D₁ Chopper Figure 05.c) |(~ 2 Xc [10 Marks]
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