A-3-phase transmission line is shown in figure:.AV:ΔV,AVbAV-AV₂-=-AVI₁aIbVoltage drop across the transmission line is givenby the following equation :IZ₂ Zm ZmZm Zs ZmZm Zm Zs][IaIbIcShunt capacitance of the line can be neglect. Ifthe line has positive sequence impedance of 15and zero sequence impedance of 48 , then thevalues of Z, and Zm will beS

Given: A 3-phase transmission line The shunt capacitance of the line can be neglected. Positive…

A-3-phase transmission line is shown in figure: -AV₁ AVa AVb AV₁ AVC -AV. Voltage drop across the transmission line is given by the following equation : = a Zm Zm I₂ CHUO Zm Zs Zm Zm Zm Zs I I Ic Shunt capacitance of the line can be neglect. If the line has positive sequence impedance of 15 and zero sequence impedance of 48 , then the values of Z, and Zm will be

A-3-phase transmission line is shown in figure: -AV₁ AVa AVb AV₁ AVC -AV. Voltage drop across the transmission line is given by the following equation : = a Zm Zm I₂ CHUO Zm Zs Zm Zm Zm Zs I I Ic Shunt capacitance of the line can be neglect. If the line has positive sequence impedance of 15 and zero sequence impedance of 48 , then the values of Z, and Zm will be

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 5.25P

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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?
A three-phase line, which has an impedance of (2+j4) per phase, feeds two balanced three-phase loads that are connected in parallel. One of the loads is Y-connected with an impedance of (30+j40) per phase, and the other is -connected with an impedance of (60j45) per phase. The line is energized at the sending end from a 60-Hz, three-phase, balanced voltage source of 1203V (rms. line-to-line). Determine (a) the current, real power. and reactive power delivered by the sending-end source: (b) the line-to-line voltage at the load: (C) the current per phase in each load: and (d) the total three-phase real and reactive powers absorbed by each load and by the line. Check that the total three- phase complex power delivered by the source equals the total three-phase power absorbed by the line and loads.
Consider a long radial line terminated in its characteristic impedance Zc. Determine the following: (a) V1/I1, known as the driving point impedance. (b) | V2 |/V1|, known as the voltage gain, in terms of al. (c) | I2 |/| I1 |, known as the current gain, in terms of al. (d) The complex power gain, S21/S12, in terms of al. (e) The real power efficiency, (P21/P12)=, terms of al. Note: 1 refers to sending end and 2 refers to receiving end. (S21) is the complex power received at 2; S12 is sent from 1.
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In the system given below, transmission line impedances are Z1=(25+j5) Ω, Z2=(75+j15) Ω, Z3= (100+j20) Ω andload impedances Za=(25+j5) Ω, Zb=(15+j5) Ω, Zc=(25+j1) Ω,a) Find the line currents?b) Calculate the total average, reactive and complex powers?
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A 60 Hz, three-phase transmission line is 100 miles long. It has a total seriesimpedance of {35 + j120) n and a shunt admittance of j930 μsiemen. It delivers40 MW at 220 kV with 90% lagging power factor. Find the voltage at the sendingend by:(a) short line approximation(b) the nominal rr approximation(c) the nominal T approximationAlso determine the voltage regulation for the given line and the power loss.Assume the sending end voltage remains constant. Expected Answer: (a) 237.67 kV, 1.4284 MW, 8.03%; (b) 225.8 kV, 1.1642 MW, 8.67% (c) 225.10 kV, 1.5095 MW, 8.35% Pls. Provide Full Solution for thumbs up