help on this question about medium transmission line? A three-phase, 60-Hz, completely transposed 440-kV, 120-km line has two conductors per bundle and the following positive-sequence line constants: z = 0.085 + j 0.42 Ω/km y = j4.2*10^-6 S/km Full load at the receiving end of the line is 500 MW at 0.94 p.f. lagging and at 92% of rated voltage. Assuming a medium-length line, determine the following: a) ABCD parameters of the nominal π circuit b) Sending-end voltage VS and current IS

help on this question about medium transmission line? A three-phase, 60-Hz, completely transposed 440-kV, 120-km line has two conductors per bundle and the following positive-sequence line constants: z = 0.085 + j 0.42 Ω/km y = j4.2*10^-6 S/km Full load at the receiving end of the line is 500 MW at 0.94 p.f. lagging and at 92% of rated voltage. Assuming a medium-length line, determine the following: a) ABCD parameters of the nominal π circuit b) Sending-end voltage VS and current IS

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

Chapter4: Transmission Line Parameters

Section: Chapter Questions

Problem 4.13P: A single-phase overhead transmission line consists of two solid aluminum conductors having a radius...

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A single-phase overhead transmission line consists of two solid aluminum conductors having a radius of 3 cm with a spacing 3.5 m between centers. (a) Determine the total line inductance in mH/m. (b) Given the operating frequency to be 60 Hz, find the total inductive reactance of the line in /km and in/mi. (c) If the spacing is doubled to 7 m, how does the reactance change?
Transmission line conductance is usually neglected in power system studies. True False
For a single-phase two-conductor line with composite conductors x and y, express the inductance of conductor x in terms of GMD and its GMR.
One circuit of a single-phase transmission line is composed of three solid 0.12" radius wires. The return circuit is composed of two 0.15" radius wires. Find the inductance of the complete line in mH/mi. The distance between wires are 40" horizontally and 25" vertically. A. 2.54 mH/mi B. 2.478 mH/mi C. 2.488 mH/mi D. 2.567 mH/mi Provide Clear Explaination
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.
2. A three-phase 60-hz transmission line has its conductors arranged in a triangular formation so that two of the distances between conductors are 20 ft and the third is 40 ft. The conductors are ACSR Rook. Determine the capacitance to neutral in microfarads per mile and the capacitive reactance to neutral in ohm-miles. If the line is 115 mi long, find the capacitance to neutral and capacitive reactance of the line.
A single-phase transmission line consisting of two conductors, the radius of each conductor is 0.4 cm, the distance between the conductors is three and half meters and the height above ground is eight meter. Determine 1)The capacitance in uF/km without effect of ground 2)The capacitance in uF/km with effect of ground
b) 100 km, 132 kV, 50 Hz transmission line has per phase resistance R=0.036 (Q/km). The conductors of this line are arranged as shown in the Figure 4, determine: 13 т 13 m di 9. a di di di ri=2 cm dı = 40 cm Figure 4 i. Geometric Mean Distance (GMD), Geometric Mean Radius (GMR1) and Geometric Mean Radius (GMRC) ii. Inductance and Capacitance of the line Series Impedance (Z) and Shunt Admittance (Y) of the line iv. Transmission line equivalent circuit. V. ABCD values
2. 100km, 132kV, 50Hz transmission line has per phase resistance R=0.036(22/km). Each phase (a, b, c) are composed of 4-bundle solid conductors with radius of 2 cm. The conductors of this line are arranged horizontally as shown in the figure. Find; a. b. C. d. GMD, GMRL, GMRC Inductance of the line in mili-H. Capacitance of the line in Micro-F. ABCD parameters of the line. 13 m 13 m b di di d₂ r1=2 cm d₁= 40 cm
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Problem 1 a- Explain the meaning of the term "bundle conductor transmission line" and discuss the effects of its use on the electrical performance of a high voltage electric transmission line. b- Consider an experimental 1800 kV three phase bundle-conductor line with parameters A= 0.95 and B=j 70. Determine the value of the parameter C of the line. Assume that the line is delivering 2,000 MVA at receiving end whose voltage of 1750 kV and unity power factor. Determine the sending end voltage of the line. d- C- Determine the sending end current of the line.
Problem 2. A three-phase transmission line at 60 Hz has its conductors in an asymmetrical triangular arrangement triangular asymmetrical arrangement, where the distances between conductors are 25, 25, and 42 ft. Determine the capacitance to neutral in μF/mi and the capacitive reactance to neutral in ohms-miles. If the line is 150 miles long, find the total reactance in ohms. The conductor diameter is 0.879