5.26 A 350-km, 500-kV, 60-Hz, three-phase uncompensated line has a positive- sequence series reactance x = 0.34 2/km and a positive-sequence shunt admittance y j4.5 × 10¯6 S/km. Neglecting losses, calculate: (a) Z, (b) yl, (c) the ABCD parameters, (d) the wavelength of the line in kilo- meters, and (e) the surge impedance loading in MW. =

5.26 A 350-km, 500-kV, 60-Hz, three-phase uncompensated line has a positive- sequence series reactance x = 0.34 2/km and a positive-sequence shunt admittance y j4.5 × 10¯6 S/km. Neglecting losses, calculate: (a) Z, (b) yl, (c) the ABCD parameters, (d) the wavelength of the line in kilo- meters, and (e) the surge impedance loading in MW. =

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

Chapter5: Transmission Lines: Steady-state Operation

Section: Chapter Questions

Problem 5.15MCQ

See similar textbooks

Similar questions

Transmission line conductance is usually neglected in power system studies. True False
30) In a lightly loaded long distance EHV lines, line loading is and has a power factor: (A) Capacitive, lagging. (B) Capacitive, leading (C) Inductive, lagging (D) Inductive, leading. please contact me in whatsapp +962782974574
One circuit of a single-phase transmission line is composed of three solid 0.5 cm radius wires. The return circuit is composed of two solid 2.5 cm radius wires. The arrangement of conductors is as shown in the following figure. Applying the concept of GMD and GMR, find the inductance of the complete line in mH per km. 5 m 5 m 10 m 5 m Conductor X Conductor Y
Determine the equivalent Pi circuit for the line in Problem 5.14 and compare it with the nominal pi circuit. The following picture shows problem 5.14.
6.6. The line constants of a transmission line are A = 0,986 0.320° and B= 70.3 69.2° ohms. Determine the capacity of a reactor to be installed at the receiving end so that when a load of 50 MVA is delivered at 132 kV and power factor 0.707-lagging the sending end voltage can also be 132 kV. Ans. 48.47 MV Ar.
The conductor of a single-phase 60-Hz line is a solid round aluminum wire having a diameter of 0.412 cm. The conductor spacing is 3 m. Determiņe the inductance of the line in millihenrys per mile. How much of the inductance is due to internal flux linkages? Assume skin effect is negligible.
17.) A single-circuit three-phase transposed transmission line is composed of four bundled ACSR Falcon as shown in the figure below. The bundle spacing is 30 cm. 30 cm+ -D12 = 15 m- D23 = 15 m D13 = 30 m A.) Calculate the inductance per phase per kilometer B.) Calculate the capacitance per phase per kilometer of the line. C.) If the conductor is replaced with a two bundled conductor and the inductance per phase is 60% of the inductance from Part A, what would be the new self- GMR of the conductor.
A 40-km, 220-kV, 60-Hz three-phase overhead transmission line has a per-phase resistanceof 0.15 W/km, a per-phase inductance of 1.3263 mH/km, and negligible shunt capacitance.Using the short line model, find the ABCD parameters. The sending-end voltage, voltageregulation, sending-end power, and transmission line efficiency when the line is supplyinga three-phase load of: (a) 381 MVA at 0.8 power factor lagging and at 220 kV, (b) 381MVAat 0.8 power factor leading and at 220 kV. How does the load type (capacitive or inductive)affect the sending voltage magnitude, voltage regulation and efficiency?
given this problem at the image determine the ABCD constants of the line. Explain it very well for me because I'm having a tough time learning it
6.9. A 132 kV, 50 Hz transmission line has the following generalised constants, A D = 0.9696 0.49°, B = 52.88 74.79° ohms and C = 1177 x 10 190.15° mho. It is supplying a load of 125 MVA, 0.9 power factor lagging at 132 kV. Calculate the sending end voltage and current. Ans. Vs = 166.1 kV, I = 554 Amp %3D
The conductor of a single-phase 60-Hz line is a solid round aluminum wire having a diameter of 0.412 cm. The conductor spacing is 3 m. Determine the inductance of the line in millinery’s per mile. How much of the inductance is due to internal flux linkages? Assume skin effect is negligible.
An 8000 V, 60 Hz, single-phase, transmission line consists of two hard-drawn aluminumconductors with a radius of 2 cm spaced 1.2 m apart. If the transmission line is 30 km longand the temperature of the conductors is 200C,a. What is the series resistance per kilometer of this line?b. What is the series inductance per kilometer of this line?c. What is the shunt capacitance per kilometer of this line?