Design a power system based on the concept of single line diagram in North Al-Batinah. The data are as follows: One coal power station with a capacity of 70MW,20KV is situated at Suwayq, and one gas power station with a capacity of 80MW,11KV is situated at Sohar. The generators are connected in star. The power is transmitted through a 200KV double circuit line from Sohar to Suwayq at a distance 98Km. This transmission line is connected to a receiving station at Saham with a distribution transformer capacity of 33/11KV.The receiving station at Saham must supply three induction motors with rating 6KV, 7KV and 8KV respectively. [Note: The intermediate value of voltages can be assumed]. Justify how the receiving station delivers power to the induction motor. Analyze the change in design if a photovoltaic power station with a capacity of 800W,765V dc is connected to the power system near Suwayq. As a design engineer how will you design this power system, if the power capacity is to be increased to 220MW?

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