A three phase 60HZ, 85kV transmission line consisting of 3 conductors are placed at the comers of atriangle of sides 10, 5, and 18 meters. The radius of each line conductor is 2.5 cm. The length of thetransmission line is 120 km. Assume En=8.854x 10 12. Determinea) Capacitance per phase per meterb)Capacitance per phase per km (Lc) Total capacitance for 120 km (d) Capacitance between the line (Cab) (Cd) Capacitive reactance between the line( Xa) (*e) Charging Current for the 120 km

Answered: Image /qna-images/answer/f01345e0-0c1d-47aa-a46e-9d39bc688f10.jpg

A three phase 60HZ, 85kV transmission line consisting of 3 conductors are placed at the comers of a triangle of sides 10, 5, and 18 meters. The radius of each line conductor is 2.5 cm. The length of the transmission line is 120 km. Assume En=8.854x1012. Determine %3D a) Capacitance per phase per meter b)Capacitance per phase per km (L c) Total capacitance for 120 km ( d) Capacitance between the line (Cab) (C d) Capacitive reactance between the line( X) (* e) Charging Current for the 120 km

A three phase 60HZ, 85kV transmission line consisting of 3 conductors are placed at the comers of a triangle of sides 10, 5, and 18 meters. The radius of each line conductor is 2.5 cm. The length of the transmission line is 120 km. Assume En=8.854x1012. Determine %3D a) Capacitance per phase per meter b)Capacitance per phase per km (L c) Total capacitance for 120 km ( d) Capacitance between the line (Cab) (C d) Capacitive reactance between the line( X) (* e) Charging Current for the 120 km

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...

See similar textbooks

Similar questions

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?
A 500-kV, 300-km, 6()-Hz, three-phase overhead transmission line, assumed to be lossless, has a series inductance of 0.97 mH/krn per phase and a shunt capacitance of 0.0115F/km. per phase. (a) Determine the phase constant p, the surge impedance Zc, velocity of propagation v, and the wavelength of the line (b) Determine the voltage, current, real and reactive power at the sending end, and the percent voltage regulation of the line if the receiving-end load is 800 MW at 0.8 power factor lagging and at 500 kV.
Approximately how many physical transmission interconnections are there between the United States and Canada? Across which states and provinces are the interconnections located?
If the per-phase line loss in a 70-km-long transmission line is not to exceed 65 kW while it is delivering 100 A per phase, compute the required conductor diameter if the resistivity of the conductor material is 1.72108-m.
A three-phase overhead transmission line is designed to deliver 190.5 M VA at 220 kV over a distance of 63 km, such that the total transmission line loss is not to exceed 2.5 of the rated line MVA. Given the resistivity of the conductor material to be 2.84108-m, determine the required conductor diameter and the conductor size in circular mils. Neglect power losses due to insulator leakage currents and corona.
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?
A 15-km, 60Hz, single phase transmission line consists of two solid conductors, eachhaving a diameter of 0.8cm. If the distance between conductors is 1.25m, determine theinductance and reactance of the line
A 132 kV, three-phase, 50Hz transmission line uses 18 mm diameter, equally spaced ACSR conductors. Determine the spacing between these conductors, if it is to be designed such that the corona inception voltage is 5% higher than the normal operating voltage of the line at 40o C. You may assume the expression relating the electric field and the voltage of the line as a starting point.
A 132 kV, three-phase, 50Hz transmission line uses 18 mm diameter, equally spaced conductors. Determine the spacing between these conductors, if it is to be designed such that the corona inception voltage is 5% higher than the normal operating voltage of the line at 40oC. (You may assume the expression relating the electric field and the voltage of the line as a starting point, m=0.9)
Q2: 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. (1) The capacitance in µF/km without effect of ground? (2) The capacitance in µF/km with effect of ground?
A three-phase 60Hz line with a flat horizontal spacing uses conductors with a GMR of 0.0112 m, diameter of 3.4 cm, and a spacing between adjacent conductors of 11 m. The inductive reactance per phase in ohms per kilometer is what?
Estimate the corona loss for a 3-phase, 110 kV, 50 Hz, 150-km-long transmission line consisting of three conductors, each of 10 mm diameter and spaced 2.5 m apart in an equilateral triangle formation. The temperature of the air is 30oC and the atmospheric pressure is 750 mm of mercury. Take the irregularity factor as 0.85. Ionisation of the air may be assumed to take place at a max voltage gradient of 30 kV/cm.