A three-phase transmission line is designed to deliver 190.5-MVA at 220- kV over a distance of 63 Km. The total transmission line loss is not to exceed 2.5 percent of the rated line MVA. If the resistivity of the conductor material is 2.84 x 10-8 2-m, determine the following: a) The resistance of the conductor b) The required conductor diameter c) The conductor size in circular mils. Neglect the power losses due to insulator leakage currents and corona.

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A three-phase transmission line is designed to deliver 190.5-MVA at 220-
kV over a distance of 63 Km. The total transmission line loss is not to exceed
2.5 percent of the rated line MVA. If the resistivity of the conductor material is
2.84 x 10-8 Q-m, determine the following:
a) The resistance of the conductor
b) The required conductor diameter
c) The conductor size in circular mils.
Neglect the power losses due to insulator leakage currents and corona.
Transcribed Image Text:A three-phase transmission line is designed to deliver 190.5-MVA at 220- kV over a distance of 63 Km. The total transmission line loss is not to exceed 2.5 percent of the rated line MVA. If the resistivity of the conductor material is 2.84 x 10-8 Q-m, determine the following: a) The resistance of the conductor b) The required conductor diameter c) The conductor size in circular mils. Neglect the power losses due to insulator leakage currents and corona.
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