Q2. The Figure below shows the conductor configuration of a completely transposed three-phase overhead transmission line with bundled phase conductors. The following data is given: The radius of all conductors: r = 1 cm The bundle spacing: d = 5 cm Distance from between phases: D =5 m Ho=4Ttx107 H/m and ɛo=8.854x1012 F/m Conductor current carrying capacity = 700A per conductor %3D

Q2. The Figure below shows the conductor configuration of a completely transposed three-phase overhead transmission line with bundled phase conductors. The following data is given: The radius of all conductors: r = 1 cm The bundle spacing: d = 5 cm Distance from between phases: D =5 m Ho=4Ttx107 H/m and ɛo=8.854x1012 F/m Conductor current carrying capacity = 700A per conductor %3D

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 4.16P

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Similar questions

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.
Shield wires located above the phase conductors protect the phase conductors against lightning. True False
25/b A transmission line subjected to wind and ice loading with a span of 65 m between level supports has conductor weight of 3.5 kg. The total weight of the conductor is 6 kg and weight additional due to ice loading is 1.25 kg. (All weights given are for unit length). The ultimate strength and safety factor of the conductor are 3600 Kg and 3 respectively. If the height of the tower is 18.7 m. Find (a) Weight of the conductor due to the effect of wind (b) Sag (c) the clearance from the ground
15 A certain type of Suspension Type Insulator is used to sustain heavy tensile loads of conductors when the line has to turn a corner or stop at a dead end. Select one: True False
In a three-phase overhead line, the conductors have an overall diameter of 3.0 cm each and are arranged in delta formation. Assuming a critical disruptive voltage of 250 kV between the lines, an air density factor of 0.90 and mo= 0.95, find the minimum spacing between conductors that is allowable. Assume fair weather conditions.
2. A single phase load of 5 MW is transmitted by a pair of overhead conductors. If a third conductor of the same cross-section and material be added and 3-phase supply be thus substituted for the original single phase, calculate the 3-phase load which can now be transmitted if the voltage between the conductors and the percentage loss in the lineremains unchanged.
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
A three-phase, 50Hz transmission line with a length of "240" is given. It has values of “27” MVA, 0.8 reverse power coefficient and phase voltage “134” kV (phase-phase) for the end of line. Transmission line conductors are placed “3.2” meters apart. The conductors are known to have a resistance of 0.11ohm/km and a diameter of 1.6cm. Neglecting the leaks and using the π equivalent circuit; ( ε0=8.854*10^(-12) F/m, μ0=4*π*10^(-7) H/m) 1) Find the total impedance value of the line, the end of line current, the line voltage at the end of the line, the line head phase and the line beginning line voltage?
A three-phase, 50Hz transmission line with a length of "240" is given. It has values of “27” MVA, 0.8 reverse power coefficient and phase voltage “134” kV (phase-phase) for the end of line. Transmission line conductors are placed “3.2” meters apart. The conductors are known to have a resistance of 0.11ohm/km and a diameter of 1.6cm. Neglecting the leaks and using the π equivalent circuit; ( ε0=8.854*10^(-12) F/m, μ0=4*π*10^(-7) H/m) Find the Inductance and Capacitance of the line for 1 km length? , Find the total ohmic resistance of the line, the total inductive reactance of the line.
A three-phase, 50Hz transmission line with a length of "240" is given. It has values of “27” MVA, 0.8 reverse power coefficient and phase voltage “134” kV (phase-phase) for the end of line. Transmission line conductors are placed “3.2” meters apart. The conductors are known to have a resistance of 0.11ohm/km and a diameter of 1.6cm. Neglecting the leaks and using the π equivalent circuit; ( ε0=8.854*10^(-12) F/m, μ0=4*π*10^(-7) H/m) a-) Find the Inductance and Capacitance of the line for 1 km length? b-) Total ohmic resistance of the line c-) The total inductive reactance value of the line
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)
2. Which among these is used to determine or compute for the Transmission Line AC Resistance? A. Conductor Real Power Loss divided by the square root of the Conductor Current flowing. B. Conductor Resistivity multiplied to the Length of the Conductor divided by the Cross-Sectional Area of the Conductor. C. Conductor Conductivity multiplied to the Length of the Conductor divided by the Cross-Sectional Area of the Conductor. D. Conductor Real Power Loss divided by the square of the Conductor Current flowing.