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An ac generator provides emf to a resistive load in a remote factory over a two-cable transmission line. At the factory a step-down transformer reduces the voltage from its (rms) transmission value V to a much lower value that is safe and convenient for use in the factory. The transmission line resistance is 0.51 2/cable, and the power of the generator is 279 kW. If V = 110 kV, what are (a) the voltage decrease AV along the transmission line and (b) the rate Pg at which energy is dissipated in the line as thermal energy? If V, = 8.1 kV, what are (c) AV and (d) Pa? If V = 0.86 kV, what are (e) AV and (f) Pa? %3D (a) Number 1 Units (b) Number 2 Units (c) Number *3 Units (d) Number |+4 Units (e) Number +5 Units (f) Number -6 Units

An ac generator provides emf to a resistive load in a remote factory over a two-cable transmission line. At the factory a step-down transformer reduces the voltage from its (rms) transmission value V to a much lower value that is safe and convenient for use in the factory. The transmission line resistance is 0.51 2/cable, and the power of the generator is 279 kW. If V = 110 kV, what are (a) the voltage decrease AV along the transmission line and (b) the rate Pg at which energy is dissipated in the line as thermal energy? If V, = 8.1 kV, what are (c) AV and (d) Pa? If V = 0.86 kV, what are (e) AV and (f) Pa? %3D (a) Number 1 Units (b) Number 2 Units (c) Number *3 Units (d) Number |+4 Units (e) Number +5 Units (f) Number -6 Units

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*Chapter 31, Problem 065 An ac generator provides emf to a resistive load in a remote factory over a two-cable transmission line. At the factory a step-down transformer reduces the voltage from its (rms) transmission value V, to a much lower value that is safe and convenient for use in the factory. The transmission line resistance is 0.51 2/cable, and the power of the generator is 279 kW. If V, = 110 kV, what are (a) the voltage decrease AV along the transmission line and (b) the rate Po at which energy is dissipated in the line as thermal energy? If V, = 8.1 kV, what are (c) AV and (d) Pa? If V = 0.86 kV, what are (e) AV and (f) Pa? (a) Number 1 Units (b) Number 12 Units (c) Number 3 Units (d) Number 1-4 Units (e) Number 5 Units (f) Number 6 Units
Transcribed Image Text:*Chapter 31, Problem 065 An ac generator provides emf to a resistive load in a remote factory over a two-cable transmission line. At the factory a step-down transformer reduces the voltage from its (rms) transmission value V, to a much lower value that is safe and convenient for use in the factory. The transmission line resistance is 0.51 2/cable, and the power of the generator is 279 kW. If V, = 110 kV, what are (a) the voltage decrease AV along the transmission line and (b) the rate Po at which energy is dissipated in the line as thermal energy? If V, = 8.1 kV, what are (c) AV and (d) Pa? If V = 0.86 kV, what are (e) AV and (f) Pa? (a) Number 1 Units (b) Number 12 Units (c) Number 3 Units (d) Number 1-4 Units (e) Number 5 Units (f) Number 6 Units
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