Question 2 60A Fgure 2 40A 100A On the km long dc distributor above the applied voltage at point O is 200V. Lengths loa = 100m, lob = 600m and the impedance for the conductor material per 10000m is Z, = 5< 53.13°n Calculate: a. The potential at point C b. Current along section OC of the distributor

Question 2 60A Fgure 2 40A 100A On the km long dc distributor above the applied voltage at point O is 200V. Lengths loa = 100m, lob = 600m and the impedance for the conductor material per 10000m is Z, = 5< 53.13°n Calculate: a. The potential at point C b. Current along section OC of the distributor

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 4.8P: A 60-Hz, single-phase two-wire overhead line has solid cylindrical copper conductors with a 1.5 cm...

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A 60-Hz, single-phase two-wire overhead line has solid cylindrical copper conductors with a 1.5 cm diameter. The conductors are arranged in a horizontal configuration with 0.5 m spacing. Calculate in mH/km (a) the inductance of each conductor due to internal flux linkages only, (b) the inductance of each conductor due to both internal and external flux linkages, and (c) the total inductance of the line.
For the overhead line of configuration shown in Figure 4.33 operating at 60 Hz and a conductor temperature of 700C, determine the resistance per phase, inductive reactance in ohms/mile/phase, and the current-carrying capacity of the overhead line. Each conductor is ACSR Cardinal of Table A.4.
On the 1km long dc distributor above the applied voltage at point O is 200V. Lengths ??? = 100?,??? = 600? and the impedance for the conductor material per 10000m is ?? = 5 < 53.130Ω. Calculate:a. The potential at point C b. Current along section OC of the distributor
1. The engineering calculations for an 800-ampere service-entrance call for two 500 kcmilcopper conductors per phase connected in parallel. The neutral conductor calculations show that the neutral conductors need only be 3 AWG copper conductors. Theriser diagram shows two rigid metal conduits, each containing three 500 kcmil phaseconductors and one 1/0 AWG neutral conductor. Why is the neutral conductor sized asa 1/0 AWG, or is this a mistake?
The diameter of the overhead lines in the form of cylindrical conductors in a 380 kV three-phase transmission system is 28 mm.a) - How much distance should there be between two conductors using the maximum area calculation equations?Calculate. (Puncture peak strength of air is 30kV / cm.)b) - In this configuration, if the distance between phase conductors is 4m, at what voltage levelCalculate the discharge occurs?c) - Maximum electric field in the same configuration, for electrode distances to be 8mCalculate the value. If needed in calculations Ꜫ0 = 8.854x10-12 F / m)
Using a 138-kV, 50 km long line “Partridge” conductor and 5 m distance between phases, there is a horizontal connection. way placed. If we neglect the resistance of the line, the maximum that can be transmitted for the following cases calculate percent increases in power (|VS| and |VR| fixed and the power angle is limited to δ 45°). If “Partridge” conductors are replaced with “Osprey” conductors with twice the aluminum area, If a second “Partridge” conductor is placed as a double bundle 40 cm apart, If the voltage level is increased to 230 kV by increasing the phase-to-phase distances of the existing line to 8 m.
The diameter of the overhead lines in the form of cylindrical conductors in a 300 kV three-phase transmission system is 20 mm. a) - How much distance should there be between two conductors using the maximum area calculation equations? Calculate. (Puncture peak strength of air is 30kV / cm.) b) - In this configuration, if the distance between phase conductors is 0 m, will discharge calculation? c) - Maximum electric field in the same configuration, for electrode distances to be A m Calculate the value. (When heard in calculations Ꜫ0 = 8.854x10-12 F / m)
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?
The total conductor cross section of a 537.40 kV (Peak value) three-phase overhead line with a length of 100 km is 517 mm2 and the conductor diameter is 29.6 mm. The roughness factor of the conductors is 0.8 and the distance between the conductors is 6 m. The ambient pressure along the line is 650 mmHg and the temperature is 15oC. Since there is corona discharge in only 5 km of this line, find the total Corona loss lost to the line using the Peek equation (Ed=30kVpeak/cm for Air). I would be very happy if you could be quick. :)
Q2: Calculate the value of full-load absorbing reactive loss for 3-phase, 450 MVA, 50 Hz, 400kV, 400 mm2 overhead TL with horizontal spacing of adjacent conductors 5.5 m.
A single-phase power line comprises two conductors each with a radius 8.0 mm and spaced 1.2 m apart in air. Determine the inductance of the line per metre length ignoring internal linkages. Assume the relative permeability, µr = 1
An Overhead transmission line has a span of 115 m. Ultimate strength is 3600 Kg and factor of safety is 2. If the sag is 3 m, If the weight due to wind is 1.5 kg/m, Determine(a) weight of the conductor and(b) Length of the line