In a power system having three conductors A, B and C of a 3-phase line carrying currents IA, IB and IC respectively. Let d1, d2 and d3 be the spacings between the conductors and discuss the following terms using sketches: i) Unsymmetrical Spacing ii) Symmetrical Spacing

In a power system having three conductors A, B and C of a 3-phase line carrying currents IA, IB and IC respectively. Let d1, d2 and d3 be the spacings between the conductors and discuss the following terms using sketches: i) Unsymmetrical Spacing ii) Symmetrical Spacing

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

Chapter3: Power Transformers

Section: Chapter Questions

Problem 3.29P: Consider three ideal single-phase transformers (with a voltage gain of ) put together as ...

See similar textbooks

Related questions

Q: Consider an experimental 2000 kV three phase bundle-conductor line with 16-sub-conductors to each…

A: (c) Given Inductance in H per meter per phase is 0.744X10-6. Capacitance in Farads per meter per…

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

Q: a. What are the main components of overhead transmission lines (OHTL)? b. List commonly used…

A: We are authorized to answer three subparts at a time, since you have not mentioned which part you…

Q: In a short paragraph, explain the need to use bundled phase conductors in HV, EHV, and UHV 3-phase…

A: Bundled conductors are made up of two or more stranded conductors that have been bundled together to…

Q: Ex :- A stranded conductor consists of seven identical strands each having a radius r as shown.…

Q: A 60 Hz, three-phase, transposed transmission line, is designed with three bobolink conductors per…

A: Given data: R=1.667×10-5 Ωmf=60 HzGMR=14.39 mm Now, GMD is, GMDa=D×2D=D2GMDb=D×D=DGMDc=D×2D=D2 Now,…

Q: 2) Capacitance of a three-phase line with equilateral spacing, and a three-phase 60-Hz line has flat…

A: Given Conductor diameter,d =3.2×cmr=d2=3.22=1.64 cmDistance between conductors…

Q: A three phase symmetrical double circuit line is arranged in a horizontal plane as shown in figure…

A: expression for the transposed line for the inductance. Given line is double circuit. Assume…

Q: Q1: a) Discuss the effect of earth on the capacitance of a line : b) Derive in expression for the…

A: (a) The earth can be considered as a conducting infinite equipotential plane. The electric flux…

Q: write down the factors considered for selection of conductor for overhead LT distribution line.…

A: There are various factors need to be check before selecting conductor for over head transmission…

Q: Calculate the line to line capacitance per km of a single-phase overhead line having copper…

Q: Calculate the weight due to ice on a transmission line where the Total weight of conductor = 3.6…

Q: Problem 19. A single-phase power line comprises two conductors each with a radius 8.0 mm and spaced…

A: Given a single phase power line comprises two conductors with, Radius, r = 8.0 mm = 8×10-3 m Spaced…

Q: A 230 kV, 60 Hz, three-phase completely transposed overhead line has one ACSR 874.5-kcmil conductor…

A: From the table, the GMR of the ACSR 874.5 kcmil conductor is 0.0386ft. The inductance of the…

Q: cm. 2. Taking the dielectric strength of air to be 30 kV/cm, calculate the disruptive critical…

A: Given Data: m = irregularity factor = 1 r = 1 cm g = 30 kv/cm (peak) = 30 kv/sqrt(2) (rms) d=…

Q: a) Discus why the transmission systems are mostly overhead systems. b)Discuss why all overhead lines…

A: ACSR- Aluminium conductor steel-reinforced cable Bundled conductors- When a single phase conductor…

Q: A three-phase 60-hz transmission line has its conductors arranged in a triangular formation so that…

A: The conductor used is ACSR Rook, The ACSR Rook is a concentrical stranded conductor with one or more…

Q: Q: 5 Figure below shows a 345 kV double-circuit three-phase transposed line composed of one ACSR,…

A: From the question we can see that we have 3 phases a, b, c and conductors of same phase are…

Q: One circuit of a single-phase transmission line is composed of three solid 0.5 cm radius wires. The…

A: Inductance | phase | m L=2×10-7 ln(DmDs) H|m For conductor 'x' Dm = (D11' D12')×(D21'…

Q: A single phase transmission line has two parallel conductors 2.5 m apart, the radius of each…

Q: Q2. The Figure below shows the conductor configuration of a completely transposed three-phase…

A: Given data, Radius of conductor r =1 cm The bundle spacing d =5 cm Distance from between phase D=5…

Q: The arrangement of conductors of a single-phase transmission line is shown in Figure wherein the…

A: According to the question we have to calculate the inductive reactance of the line.

Q: a). What is the reason for providing sag in an Overhead transmission line? b). List any two…

A: Whenever there is a need to send electricity to far off long distances, then the usage of overhead…

Q: A single phase 2 conductor operates at 50Hz, the diameter of each condcutor is 60mm and spacing…

A: The inductance is expressed as the ratio of the flux linkage with the magnitude of the current. It…

Q: Example A single phase transmission line has two parallel conductors 3 m apart, the ra- dius of each…

Q: c) A three phase transmission line operated at 60HZ is arranged as shown in Figure 4. The conductors…

A: The code word of the conductor is Pheasant. So according to the given appendix, diameter of the…

Q: Q2. The Figure below shows the conductor configuration of a completely transposed three-phase…

A: According to question: a) Inductance per phase is calculated as…

Q: A three-phase transmission line is designed to deliver 190.5 MVA at 220 kV over a distance of 63 km.…

Q: Q/ Determine the inductance per phase per Km for a three phase double-circuit line whose phase…

A: In this question we need to find a per phase inductance of line and it's impedance value.

Q: Consider the 500 kV, three phase bundled conductor line as shown in the figure below. Find the line…

Q: The three conductors of a 3-Φ transmission line are arranged in a horizantal plane and are 5m…

A: Consider that the phase inductance of phase conductor R,Y and B are LA, LB and LC respectively,…

Q: Explain the following items i) Steps used to draw the equivalent impedance diagram of the network…

A: i) Procedure to draw impedance diagram 1. Establish Base Voltage through the System 2. Calculate the…

Q: The conductor of a single-phase 60-Hz line is a solid round aluminum wire having a diameter of 0.412…

A: Inductance: It is a passive two-terminal electrical component and measured in Henry (H). When…

Q: (a) A three-phase transposed single line is composed of one Aluminium conductor steel- reinforced…

Q: a) A single-phase transmission line has two parallel conductors m apart, the radius of each…

A: For the two-conductor transmission line system, the loop impedance per m length of the line can be…

Q: a.Why does power plants have high amounts of voltages? Explain. b.Is it safe for transmission lines…

A: a. The power plant has high output voltages as sending high voltages on the transmission line is…

Q: A three-phase transmission line is designed to deliver 190.5-MVA at 220- kV over a distance of 63…

Q: Problem 1. A 60-Hz three-phase, three-wire overhead line has solid cylindrical conductors arranged…

Q: Calculate the weight due to ice on a transmission line where the Total weight of conductor = 3.2…

A: Total weight of conductor=3.2kg/m Actual weight of conductor=1.8kg/m Weight due to wind=0.8kg/m

Q: phase bundled transmission line of 200 km length consists of three ACSR conductors as shown.…

Q: 5) Non minimum phase systems are also non causal. True False

A: Non-minimum Phase system: They are causal and stable systems whose inverse are causal but unstable.…

Q: single phase line operating at 50Hz consist of 2, 12strand copper conductors with 1.5 spacing. line…

Q: Calculate the weight due to ice on a transmission line where the Total weight of conductor = 3.2…

A: Actual weight of conductor is given w=1.4 kg/m Total weight of conductor is given, wt=3.2 kg/m…

Q: Calculate the limit of TL length at the full-load for three-phase, 450 MVA, 400 kV, 50 Hz, 400 mm²…

A: Given data, The diameter of the overhead line is 6.93. Overhead line = 400mm2 Voltage of overhead…

Q: A single-phase transmission line has two parallel conductors 4 m apart, the radius of each conductor…

A: Part i: Write the expression for the external inductance per meter length of one conductor,

Q: Describe the effect of resistive load on sending and receiving end voltages, Power transferred and…

A: Effect of resistive load on sending and receiving end voltages, power transferred and Power factor.…

Q: A three-phase transposed line is composed of one ACSR 1,431,000 cmil, 47/7 Bobolink conductor per…

A: Given: d=3.625cm GMR=1.439 cm.

Q: In an over head transmission line the conductor weight with ice loading is 2.35 kg. The total weight…

A: As per bartleby guideline for more than one question asked only first is to answered please upload…

Q: The arrangement of conductors of a single-phase transmission

Q: 1.10 A 60-Hz, three-phase three-wire overhead line has solid cylindrical conductors arranged in the…

A: In this question, 3 conductors are arranged in form of an equilateral triangle with 4-ft conductor…

Concept explainers

Single Phase AC Circuit

Alternating Current (AC) is a type of electric power in which the electric current changes, both in magnitude and direction, at regular intervals. This AC Circuits can deliver power in either a Single Phase system or a Three Phase system.

Question

In a power system having three conductors A, B and C of a 3-phase line
carrying currents IA, IB and IC respectively. Let d1, d2 and d3 be the
spacings between the conductors and discuss the following terms using
sketches:
i)
Unsymmetrical Spacing
ii)
Symmetrical Spacing

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 2 steps with 4 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Analysis of Single Phase and Three Phase System

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, electrical-engineering and related others by exploring similar questions and additional content below.

Similar questions

Problem 1 - Series en Parallel AC networks [19] Look at the circuit in Figure 1 and determine the following: (a) Total Admittance. (b) Total Impedance. (c) Total Current (l:). (d) Current (I1) through impedance Z2. (e) Current (12) through impedance Z3. (f) Current (I3) through impedance Z4. (g) Is this an inductive or capacitive circuit? A. B Zs 220V;50HZ Figure 1 (h) Voltage across Z1. (i) Voltage across A and B. G) Voltage across Zs. Z1 = 3 + j5 ohm Z2 = 10 + jo ohm Z3 = 5 + j15 ohm Z4 = 10 – j30 ohm Zs = 20 – j30 ohm Admittance and Impedance in rectangular notation. All currents and voltage in polar notation. Take voltage as reference.
Consider three ideal single-phase transformers (with a voltage gain of ) put together as three-phase bank as shown in Figure 3.35. Assuming positive-sequence voltages for Va,Vb, and Vc find Va,Vb, and VC. in terms of Va,Vb, and Vc, respectively. (a) Would such relationships hold for the line voltages as well? (b) Looking into the current relationships, express IaIb and Ic in terms of IaIb and Ic respectively. (C) Let S and S be the per-phase complex power output and input. respectively. Find S in terms of S.
For a balanced three-phase positive-sequence currents Ia,Ib,Ic, does the equation Ia+Ib+Ic=0 hold good?
Consider a single-phase electric system shown in Figure 3.33. Transformers are rated as follows: XY15MVA,13.8/138kV, leakage reactance 10 YZ15MVA,138/69kV, leakage reactance 8 With the base in circuit Y chosen as 15MVA,138kV determine the per-unit impedance of the 500 resistive load in circuit Z, referred to circuits Z, Y, and X. Neglecting magnetizing currents, transformer resistances, and line impedances, draw the impedance diagram in per unit.
1. How do you measure three phase line currents by using two current transformers? Draw the connection scheme.
please solve for nodal stress method. (if it is possible to apply supernodes)
12. There are 6 conductors in a double circuit line. Each conductor has a radius of 12 mm. The 6conductors are arranged horizontally. The center to center distance between the conductor is 2m. The sequence of conductors are from left to right as follows: a,b.c,a', b', c'. Calculate the inductance per km per phase of system. the a' 2 m 2 m 2 m 2 m 2 m
Connect three single-phase transformers in Y-Y, with subtractive polarity, so that the line-to-line voltages on the primary are 30 degrees delayed to their respective line-to-line voltages on the secondary. It should show each step that is needed to make this connection (example: the phasor diagram) and should show the final connection of the three transformers including the polarity markings. Assume phase A on the primary is terminal "H1".
High Voltage level in Transmission system ensures ………………… a. High current in Overhead conductors b. Less power factor c. Low Power Transfer d. Reduction in conductor size
Single core cable design for 25 kV. The radius of conductor is 0.5 cm. The insulation material consists of two layers. The thickness of each layer is 2 cm. The voltage of first and second layers are 20 kV, 5 kV respectively. The maximum Electric stress of the cable is
Three zones of a single-phase circuit are identified in the figure. The zones are connected by transformers T₁ and T2, whose ratings are also shown. Using base values of 100 kVA and 240 volts in zone 1, draw the per-unit circuit and determine the per-unit impedances and the per-unit source voltage. Then calculate the load current both in per-unit and in amperes. Transformer winding resistances and shunt admittance branches are neglected. Zone 1 Zone 2 Vs = 220/0° volts 3---38 T, 30 KVA 240/480 volts M 0.10 p.u. Xoa Xune = 2 fl T T₂ 20 kVA 460/115 volts Xeg = 0.10 p.u. Zone 3 ww Zload = 0.9 - 10.20
in distribution transformers; What is 30 degrees phase shift in delta-star connection? What are the disadvantages? (can you explain with drawing?)