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Calculate the most economical conductor size

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Reference no: EM133203308

A 5 km long three transmission line is required to supply a load of 5MVA at 0.8 power factor lagging at 33kV throughout the year. The cost of cable including installation is (20a + 20) Rand per meter (where 'a' is the cross-sectional area of the conductor in cm2). The cost of energy is 11 cents per kWh, interest and depreciation charges amount to 12%. Assume the resistivity of the conductor to be 1.73μΩcm and calculate the most economical conductor size.

Reference no: EM133203308

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