2.12 A high-voltage direct-current generating station delivers 10 MW of power at 250 kV to a city, as depicted in Fig. P2.12. The city is represented by resistance RL and each of the two wires of the transmission line between the generating station and the city is represented by resistance RTL. The distance between the two locations is 2000 km and the transmission lines are made of 10 cm diameter copper wire. Determine (a) how much power is consumed by the transmission line and (b)

2.12 A high-voltage direct-current generating station delivers 10 MW of power at 250 kV to a city, as depicted in Fig. P2.12. The city is represented by resistance RL and each of the two wires of the transmission line between the generating station and the city is represented by resistance RTL. The distance between the two locations is 2000 km and the transmission lines are made of 10 cm diameter copper wire. Determine (a) how much power is consumed by the transmission line and (b)

Power System Analysis and Design (MindTap Course List)

6th Edition

ISBN:9781305632134

Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Chapter2: Fundamentals

Section: Chapter Questions

Problem 2.31P: Consider two interconnected voltage sources connected by a line of impedance Z=jX, as shown in...

See similar textbooks

Similar questions

A power plant produces 1000MW to supply a city 40km away. Current flows from the power plant on a single wire with resistance through the city and returns via the ground, with negligible resistance. At the power plant the voltage between wire and ground is 115 kV. Determine: (a) the current in the wire, and (b) the fraction of the power lost in transmission.
A high-voltage direct-current generating station delivers 5 MW of power at 178 kV to a city, as depicted in Figure below. The city is represented by resistance R₁ and each of the two wires of the transmission line between the generating station and the city is represented by resistance RTL. The distance between the two locations is 1752 km and the transmission lines are made of 7 cm diameter copper wire. Determine how much power is consumed by the transmission line. Please enter your answer 2 decimal places and in terms of Watt. (for copper-1.72 x 10-8) Vo Station RTL RTL ww RL (city)
Give the suitable solution for the following The non-conventional sources of energy are........ The diesel power station cannot be located at any place (T or F) The d.c resistance of various types of conductors at specified temperature (T) is found by...... The self-GMD of a conductor depends upon the ...... ...... and ..................of the conductor The voltage drop is increased if the length of transmission line is increased (T or F) The skin effect depends upon the.............. ........ and ********* , and..... …........
A power line is needed to connect a power station on the shore of a river to an island 4miles downstream and 1miles offshore. Find the minimum cost for such a line given that it costs $50 000 per mile to lay the wire under water and $30 000 pe mile to lay wire underground.
A string of suspension consists of four (4) units. The Voltage between each pin and earth is 0.12 of the Self-Capacitance of the unit. The Voltage between the Line Conductor and earth is 135KV. Find the Voltage distribution across each unit and the String Efficiency
An AC circuit is shown in the diagram. The source of emf has a peak voltage of 9.00 V and a frequency of 60.0 Hz. Assume the wires contribute a negligible amount to the resistance and the AC source has negligible internal resistance. 524 2 493 2 1.56 k2 a) Find the equivalent resistance of the circuit. Redraw the circuit showing the equivalent resistor and use this simplified circuit for the rest of the problem. 315 2 Re = b) Find the rms current. 9.00 V, 60.0 Hz c) If the current is zero at time t= 0, find the first two times (after time t-0) that the current is equal to its rms value. and d) Find the average power dissipated by the circuit.
OR e) What is BILS? Explain their significance in power system studies.
A 500 MVA synchronous machine has H, = 5.6 MJ/MVA and a 1200 MVA machine has H₂ = 2.0 MJ/MVA. The two machines operate in parallel in a power station. What is the equivalent. H constant for the two, relative to a 100 MVA base?
State Kirchhoff’s Current Law.
3) Resistor is used as load in the circuit below. T1 and T4 thyristor is triggered at 30 degrees, T2 and T3 thyristor is triggered at 210 degrees. The effective voltage of the AC voltage applied to the circuit is 120 V. a) Draw the graph of the voltage on the load resistor.b) Neglect the voltage drop across the thyristors and find the average value of the load voltage.
Select the false comment about the Alternating Current and Direct Current. A Direct current is not easily converted to higher or lower voltages, thus, cannot delivered to long distances. B AC system in the U.S. provides in 60 Hz C Today our electricity is still predominantly powered by AC. D Solar Photo Voltaic cells are the example of running on AC power.
A- A 3-ph, double circuit O.H.T.L, 320 kV, 340 km, 50 Hz has a configuration as shown in the figure below where each phase in the double circuit has a double bundle with a spacing of d cm between the two conductors in the bundle where d is the last two digits (from right) of your registration number (i.e for the student that has a registration mumber 202112396, d= 96). Each conductor in the bundle has a diameter of 0.135 ft and a geometric mean radius (Ds = 1.6 cm). Calculate: 1- Inductance per phase per km. 2- Total inductive reactance. 3- This T.L. is required to supply 240 MVA at 0.86 lag P.f. at 320 kV, assuming that this load is divided equally between these two circuits, find the voltage drop across this T.L (ignore capacitive effect in the calculation). 4- What may happen if we replace the location of a' and c' bundles. Discuss your answer. 5- Suggest a way to ređuce the value of the inductance. Verify your suggestion. -8 m 3m 3m 8 m 11 m