(b) A 3-phase transmission line has a resistance per phase of 50 and an inductive reactance of 150 per phase. Graphically, determine the load which the line will be supplying at 132kV and 0.8 p.f. lagging. The sending- end voltage is 140kV.

(b) A 3-phase transmission line has a resistance per phase of 50 and an inductive reactance of 150 per phase. Graphically, determine the load which the line will be supplying at 132kV and 0.8 p.f. lagging. The sending- end voltage is 140kV.

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 5.11P: A 40-km, 220-kV, 60-Hz, three-phase overhead transmission line has a per-phase resistance of...

See similar textbooks

Similar questions

A small manufacturing plant is located 2 km down a transmission line, which has a series reactance of 0.5/km. The line resistance is negligible. The line voltage at the plant is 4800V(rms). and the plant consumes 120kW at 0.85 power factor lagging. Determine the voltage and power factor at the sending end of the transmission line by using (a) a complex power approach and (b) a circuit analysis approach.
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?
Solve this math : A three-phase 60-hz transmission line has its conductors arranged in a triangular formation so that two of the distances between conductors are 20ft 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. Note: In the below i have added similer type of math and its ans.In the above math, there is just changes of values and Main Change is ACSR ROOK which is given to then question and in the below question which is solved it was ask ACSR Parakeet. So notice that. Follow This Book for help"POWER SYSTEM ANALYSISAND DESIGN;FIFTH EDITION, SI;J. DUNCAN GLOVER" Now solve the math according to the given way solve the math. "A three-phase 60-hz transmission line has its conductors arranged in a triangular formation so that two of the distances between conductors are 25…
Question-2) The parameters of a three-phase transmission line are given as Z = (12.84 + j72, 76)Ω and y = j5, 83x10^-4 mho. At the end of the line, a power of 55 MVA with a power factor of 0.8 is drawn under 132 kV voltage. Accordingly, calculate the line head voltage, active and reactive power values per line, and voltage regulation of the line using the nominal π circuit.7-) Since 55 MVA power is drawn from the end of the line under the conditions mentioned above, calculate the line head voltage (phase-phase voltage) and enter it in the box below. (The value will be entered in kiloVolts. Only the amplitude value of the voltage will be entered. The phase value will NOT be entered!!! Two digits after the comma will be sufficient. )8-) Since 55 MVA power is drawn from the end of the line under the conditions mentioned above, calculate the active power value per line and enter it in the box below. (The value will be entered in MegaWatt. It will be sufficient to take two digits after…
In the medium-length power transmission line model given below, since the end-of-line voltage value of the nominal-T equivalent circuit is 154 kv, find the voltage regulation value for this line and draw the phasor diagram.
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
A 50ohm transmission line powered by a 3GHz source and terminated with a load impedance ZL=25-j60 ohms will be matched with the shorted parallel side. What should be the length, in m, of the parallel lateral line calculated using the Smith diagram ?
A 69-kV, three phase short transmission line is 16km long. The line has a per phase series impedance of 0.125 + j0.4375 ohms per km. Determine the sending end voltage, voltage regulation, the sending end power, and the transmission efficiency when the line delivers:(a) 70 MVA, 0.8 lagging power factor at 64 kV.(b) 120 MW, unity power factor at 64kV.
Assuming the voltage at the utility bus is 13.5 kV and the PV plant supplies 4.8 MW of power at 0.95 power factor lagging. Draw the diagram of the system and determine i) the per-phase voltage and current at the POI at the PV plant ii) the reactive power delivered and that which is lost in the line. Assume the line is modelled as a short line.
With the system shown in figures, use 100MVA as system base, and 230 kV as base voltage along the transmission line. 1. Build the Y-bus matrix without the Load. What is the element Y12 in susceptance value? 2. If you are to convert the real power load to a shunt conductance, what is the value of the conductance in per unit?
In three-phase short transmission line with end-of-line interphase voltage UR = 31,5kV , from the end of the line active power absorbed PR = 9000 kW, end of line power factor is cosφ = 0,70 (end) and the length of the line is l = 20km, The resistance of the line per km is R'= 0,125 Ohm/km, the reactance per km is X'= 0,375 Ohm/km.With the help of given information; a) Calculate the current drawn from the line (IR) as a phasor. b) Calculate the line-to-line-neutral voltage (VS) as a phasor, determine the effective line-to-line voltage (US) Calculate its value. c) Calculate the line head power factor, active and reactive power drawn from the line head, d) Draw the phasor diagram of the system. ..
Given a three-phase load of 125 MW at power factor of 0.8 lagging, operating at 69kV, with a transmission line efficiency of 97% and voltage regulation of 95%, and the line length of 50 km, design a transmission line system and determine the best conductor configuration,conductor resistance and inductance, and conductor radius values to achieve the efficiencyand voltage regulation set. Assume a two-bundled conductor configuration with GMR of 0.0496 m and bundle spacing of 30 cm.