Over sting of 3- phase transmission line has 4 in sulators and Ce-0.15C. If the voltage between the steel pin of the first insulator and the conductor is 25 kV. Find 1- The voltage distribution over the sting and what will be the string efficiency.

Over sting of 3- phase transmission line has 4 in sulators and Ce-0.15C. If the voltage between the steel pin of the first insulator and the conductor is 25 kV. Find 1- The voltage distribution over the sting and what will be the string efficiency.

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

See similar textbooks

Related questions

Q: Each line of a 3-phase system is suspended by a string of 3 similar insulators. If the voltage…

A: given voltage across string unit=17.5kv no of insulator=3 shunt capacitance 1/10 th of the…

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: 1- Conductor cables are considered the active elements of a transmission line, as they carry…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

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: 6. Verify that the volume of conductor required in a transmission system is inversely proportional…

A: Power in Three-Phase circuit- Power depends on voltage, current and power-factor. Law's of…

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

A: a. The transmission lines are mostly overhead systems due to the following reasons,…

Q: Q1/ Explain in detail VOLTAGE DROP / RISE IN TRANSMISSION LINE With mathematical examples

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: A d.c. 2-wire system is to be converted into a.c. 3-phase, 3-wire system by the addition of a third…

A: A DC 2-wire system is to be converted into 3-phase 3-wire system. We need to calculate the…

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: For a transmission line, the value of the open circuit and short circuit impedance are 100 ohm and…

A: If ZOC is the open circuit input impedance and ZSC is the short circuit input impedance of a…

Q: (ii) tränsmission efficiency *. Estimate the distance over which a Joad of 15000 kW at 0-85 n f can…

Q: The conductor of one phase of a three- phase transmission line operating at a line voltage of 258 kV…

A: Given: Line voltage=258 kV Rated VA=510 MVA CT ratio of current transformer=1000/5

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

Q: Determine the current in the neutral conductor and the current in each line conductor (i.e., IR, IB…

A: A 3-Φ, four-wire system is shown below: The phase voltage and the line voltage in a star…

Q: 400MVA power is transmitted with 380kV voltage and 18.1948 degree power angle with the help of a 500…

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

A: a) The transmission systems are mostly overhead systems: Electrical power transmission is the…

Q: 1) write down the factors considered for selection of conductor for overhead LT distribution line.

A: We have to write the factors considered for selection of conductor for overhead LT(Line…

Q: : A single phase transmission line is having receiving end voltage 22kV and sending end voltage of…

Q: calculate capacitane, inductance, resistance and conductance of one type of transmission line by…

A: Transmission lines are conductors that serve as a channel for electrical waves (energy) to be…

Q: Q2. What is the benefit of using stranded conductors in transmission systems?

A: The benefits of stranded conductors are listed below:

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: Calculate the capacitive reactance in Q-km of a bundled 60 Hz three-phase line having three ACSR…

A: Conductor- A conductor is a material which contains a significant population of free electrons that…

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: In a power system having three conductors A, B and C of a 3-phase line carrying currents IA, IB and…

A: The three-phase line is represented by the phase A, B, and C, the current across the given conductor…

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: Determine the current in the neutral conductor and the current in each line conductor (i.e., IR, IB…

A: Since you have asked multiple questions in a single request, we will be answering only the 1st…

Q: An Overhead transmission line has a span of 115 m. Ultimate strength is 3600 Kg and factor of safety…

Q: A high voltage DC transmission line delivers 1000 MW at 500 kV to an aggregate load over a distance…

Q: A transmission line of 50 ohm characteristic impedance is terminated with a load of 200 ohm…

A: The theory of transmission line states that if the value of the load impedance (ZL) is having a…

Q: A 4.16 kV three-phase feeder is supplying a purely resistive load of 5400 kVA. It has been deter-…

A: The solution can be achieved as follows.

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

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

Q: A load of 120 MW at a power factor of 0.8 lagging can be delivered by a 3-phase transmission line.…

A: Solution:- Given, PL-3ϕ =120 MW PL-1ϕ = 40 MW Pf = 0.8 lagging VR-1ϕ = 45 × 1033= 25.9807 KV Single…

Q: 21. define precisely the "regulation" of a transmission line and discuss its dependence on load…

A: As the load increases, the terminal voltage reduces. Different loading conditions produces different…

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: A 345-kV transmission line has a series impedance of (4 + j60) Q and a shunt admittance of j2 ×…

A: Given values are - SBase=100MVAVBase=345kVZ=4+j60Y=j2×10-3S

Q: In nominal-T method of medium transmission line what is the assumption about the capacitance

A: In a nominal T model of a medium transmission line, the series impedance is divided into two equal…

Q: A single phase load of 5 MW is transmitted by a pair of overhead conductors. If a third conductor of…

A: Single phase: The phase refers to the distribution of a load. A single-phase system uses a single…

Q: (b) Discuss the proximity transmission line conductors of power in Oman using sketch. a

A: Proximity effect- Case-Suppose we have two conductors A and B placed each other as shown in fig.…

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

Q: Example 4 : Determine the efficiency and regulation of a 3-phase, 100 km, 50 Hz transmission line…

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

A: As per the rules we can answer only 3 sub-parts, please post the remaining sub-parts as the separate…

Q: Each line of a 3-phase system is suspended by a string of 3 similar insulators. If the voltage…

A: The solution can be achieved as follows.

Q: Problem 1 Explain the meaning of the term "bundle conductor transmission line" and discuss the…

A: Part (a) - Introduction - In some transmission lines, despite of a single conductor per phase,…

Q: A 3¢, with VL-L of 34.5 kV, grounded-Way feeder has 556.5 kcmil ACSR with 30-strands AL conductor,…

A: for star connection , phase current = line current . apparent power = 3 ×VL×IL

Q: Estimate the distance over which a load of 15000 kW at 0·85 p.f. can be delivered by a 3-phase…

Question

subject is : power

Over sting of 3- phase transmission line has 4 insulators and Ce-0.15C. If the voltage
between the steel pin of the first insulator and the conductor is 25 kV. Find
1- The voltage distribution over the sting and what will be the string efficiency.
2- If the string is supplied by a guard ring and this lead to add one air capacitance of
0.12C. find the new voltage distribution and the efficiency

Expert Solution

This question has been solved!

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

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step 3

VIEW

Step by step

Solved in 3 steps with 3 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

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

In a 33 kV overhead line, there are 3 units in the string of insulators. If the capacitance between each insulator to pin and earth is 9% of self-capacitance of each insulator. Find distribution of voltage over three insulators and string efficiency.
In a string of suspension insulator with three units, the line unit has 20kV and k=0.35. The voltage across tower unit is........ and across middle unit is.......
The number of disc insulators used in a suspension insulator setup with string efficiency 80 %, phase voltage 33 kV, and the voltage across insulator nearest to conductor 11 kV is .......................... Complete the answer.
In an outdoor substation the three bus-bar conductors are supported by units of post type insulators. Each unit consists of a stack of 3 pin type insulators fixed one on the top of the other. The voltage across the lowest insulator is 15kV and that across the next unit is 12kV. Estimate: i. ratio of mutual to self-capacitance ii. the bus-bar voltage of the substation. iii. Efficiency across the string of insulators
Over string of three phase transmission line has a four insulators and Ce=D0.12 C. If the voltage between the steal pin of the first insulator and the metal cap of the third insulator is 33 kv. 1- Find the voltage distribution over the insulator. What will be the string efficiency 2- If the sting is supplied by a guard ring and this lead to add one air capacitance of value 0.2 C. What will be the new distribution over the insulators and what will be the new string efficiency.
Over string of three phase transmission line has a four insulators and Ce=D0.12 C. If the voltage between the steal pin of the first insulator and the metal cap of the third insulator is 33 kv. 1- Find the voltage distribution over the insulator. What will be the string efficiency 2- Ifthe sting is supplied by a guard ring and this lead to add one air capacitance of value 0.2 C. What will be the new distribution over the insulators and what will be the new string efficiency.
Over sting of 3- phase tran smission line has 4 insulators and Ce=0.15C. If the voltage between the steel pin of the first insulator and the conductor is 25 kV. Find 1- The voltage distribution over the sting and what will be the string efficiency. 2- If the string is supplied by a guard ring and this lead to add one air capacitance of 0.12C. find the new voltage distribution and the efficiency
INSULATORS A string of suspension consists of four (4) units. The Voltage between each pin and earth is 0.14 of the Self-Capacitance of the unit. The Voltage between the Line Conductor and earth is 135 KV. Find the Voltage distribution across each unit. Draw the diagram.
In an outdoor substation the three bus-bar conductors are supported by units of post type insulators. Each unit consists of a stack of 3 pin type insulators fixed one on the top of the other. The voltage across the lowest insulator is 15kV and that across the next unit is 12kV. Estimate: ratio of mutual to self-capacitance i. the bus-bar voltage of the substation. Efficiency across the string of insulators ii. iii.
Discuss the desirable properties of insulators. Explain the causes of insulator failure due to electrical breakdown. Each line of a three-phase system is suspended by a string of three identical insulators of self-capacitance C farad. The shunt capacitance of connecting metal work of each insulator to earth is 20.7 % of C while for line it is 13.8 % of C. Calculate the string efficiency of the system if a guard ring increases the capacitance to the line of metal work of the lowest insulator to 0.25 C.
Over sting of 3- phase tran smission line has 4 insulators and Ce=0.15C. If the voltage between the steel pin of the first insulator and the conductor is 25 kV. Find 1- Thevoliage distribution over the sting and what witt be the string efficieney. 2- If the string is supplied by a guard ring and this lead to add one air capacitance of 0.12C. find the new voltage distribution and the efficiency
For transferring electrical power at 220 kV, six conductors of ACSR Drake constitute a 60Hz double circuit three phase line arranged as shown below. The vertical spacing between consecutive conductors is 14ft; the longer horizontal distance is 32ft whereas the shorter horizontal distance is 25ft. a. Find the inductance per phase per mile and the inductive reactance per phase in ohms per mile. b. Find the capacitive reactance to neutral in ohm-miles. c. Find the resistance per phase per mile in ohms per miles. d. If the length of the line is 90 miles then draw an equivalent circuit of the line and analyse the open circuit and short circuit performance of the line. e. Find the maximum power we can transmit over the line. f. If the line is delivering power to a load of 20MW at 0.8 power factor lagging then find the voltage at the receiving end of the line. Also, Determine the voltage regulation, losses and efficiency of the line. g. If a fixed shunt compensation of 3 MVAr is attached at…