7. Power on the tires equals power U1 = 10 kV, the dist

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7. Power on the tires equals power U1 = 10 kV, the distance to the consumer l = 500 km. The station should provide the user with power P = 100 kW. Losses voltage wires must not exceed k = 4%. Calculate the weight of the copper wires in the area power station - the consumer. The density and the resistivity of copper are, respectively, d = 8,9 ∙ 103 kg / m3 ρ = 1,7 ∙ 10-8 ohm ∙ m. What should be the weight of the wires when the voltage increase is 50 times?

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Detailed solution. Decorated in Microsoft Word 2003. (Target decided to use formula editor)


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