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4. A high-voltage transmission line with a resistance of 0.31.2/km carries a current of 1000 A....
A 160-km-long high-voltage transmission line 2.0 cm in diameter carries a steady current of 1,150 A. If the conductor is copper with a free charge density of 8.5 1028 electrons per cubic meter, how many years does it take one electron to travel the full length of the cable? (Use 3.156 107 for the number of seconds in a year.) yr?
A power transmission line carries 500 A of current at a voltage of 840 kV. If the line has a resistance of 24 µΩ/m, what is the rate at which energy is being dissipated in 600 km of line?
power system A single-circuit 60-Hz high voltage power transmission line is 370 km (230 mi) long. The conductors are Rook with flat horizontal configuration and 7.25 ms=(23.8 ft.) conductor spacing. The load on the line is 125 MW at 100% power factor. Use attached Tables A3 to A3to determine; The sending end voltage Vs The sending end current Is The sending end power Ps The percentage voltage regulation The transmission efficiency Given that Ds for the Rook conductor is 0.0327...
A typical overhead power line is bare wire at a high potential relative to ground. A local line receives power at 3300 V with respect to the ground; the delivered voltage is slightly less, due to resistance loss in the wire. The wire is 10 km long, carries a current of 60 A, and has a resistance (made small to limit power loss) of 2.5 Ω. 1) Approximately how much power is lost due to the resistance of the wire?...
The two wires of a high-voltage transmission line are carrying 900 A to and from a city. The voltage between those two wires is 200000 V. In bringing electricity to individual homes, the power is transferred to low-voltage circuits so that the current passing through homes experiences a voltage drop of only 120 V. How much total current is passing through the homes of the city?
0. A high-voltage power line 20 m above the ground carries a current of 5000 A. What is the magnetic field due to the current directly underneath the power line? (o 4x 10T-m/A) a. 14 mT c. 20?? d. 50?? b. 35 T
A high voltage power transmission line transmitting 100MW of electrical power is operating at a voltage of 288KV. If the line loses 843KW what is its resistance (give your answer in Ohms)?
A high voltage power transmission line transmitting 100MW of electrical power is operating at a voltage of 324KV. If the line loses 956KW what is its resistance (give your answer in Ohms)?
Copper and aluminum are being considered for a high-voltage transmission line that must carry a current of 49.2 A. The resistance per unit length is to be 0.172 Ω/km. The densities of copper and aluminum are 8960 and 2600 kg/m3, respectively. Compute (a) the magnitude J of the current density and (b) the mass per unit length λ for a copper cable and (c) J and (d) λ for an aluminum cable.
Copper and aluminum are being considered for a high-voltage transmission line that must carry a current of 59.0 A. The resistance per unit length is to be 0.181 Ω/km. The densities of copper and aluminum are 8960 and 2600 kg/m3, respectively. Compute (a) the magnitude J of the current density and (b) the mass per unit length λ for a copper cable and (c) J and (d) λ for an aluminum cable.