Subject Power Transmission and Distribution 1. What are the factors which governs the performance of transmission line?2. How do you classify transmission lines?3. What are the causes of voltage drop and line losses in a transmission line?4. What is voltage regulation of line?5. Explain the effect of load power factor on the transmission efficiency?6. What do you understand by Ferranti effect?7. How does rise in voltage at the receiving end of an open circuited line depend upon the lengthof the line and system operating voltage?8. How do the terms 'impedance drop', 'voltage drop' and 'voltage regulation', in connection oftransmission line differ?9. Why in medium and long transmission lines, regulation is greater than voltage drop?10. What is primary distribution system and what is normal operation voltage of primarydistribution?11. What is interconnected system and where is it employed and why?12. What is radial system of distribution? what are its advantages and drawbacks.13. What is usable voltage of secondary distribution?14. Which one is better for transmission AC or DC distribution? And why?15. What is transposition? Why it is done?16. Explain skin effect and on what factors skin effect depends?17. What is the difference between radius (r) of a conductor and effective radius (r') of a conductor?18. Why bundling of conductors is done?19. What are the benefits of stranded conductors over solid-rod conductors?20. Distinguish between ac and dc resistances of a conductor. Why the two differ?

1..>> The performance of the transmission line depends on parameters like :- Resistance of…

1. What are the factors which governs the performance of transmission line? 2. How do you classify transmission lines? 3. What are the causes of voltage drop and line losses in a transmission line? 4. What is voltage regulation of line? 5. Explain the effect of load power factor on the transmission efficiency? 6. What do you understand by Ferranti effect?

1. What are the factors which governs the performance of transmission line? 2. How do you classify transmission lines? 3. What are the causes of voltage drop and line losses in a transmission line? 4. What is voltage regulation of line? 5. Explain the effect of load power factor on the transmission efficiency? 6. What do you understand by Ferranti effect?

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 5.30P

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Similar questions

For a lossless open-circuited line, express the sending-end voltage, V1, in terms of the receiving-end voltage, V2, for the three cases of short-line model, medium-length line model, and long-line model. Is it true that the voltage at the open receiving end of a long line is higher than that at the sending end, for small 1?
The maximum power flow for a lossy line is somewhat less than that for a lossless line. True False
The 100-km, 230-kV, 60-Hz, three-phase line in Problems 4.18 and 4.39 delivers 300 M VA at 218 kv to the receiving end at full load. Using the nominal circuit, calculate the ABCD parameters, sending-end voltage, and percent voltage regulation when the receiving-end power factor is (a) 0.9 lagging, (b) unity, and (c) 0.9 leading. Assume a 50C conductor temperature to determine the resistance of this line.
Calculate the capacitance-to-neutral in F/m and the admittance-to-neutral in S/km for the three-phase line in Problem 4.18. Also calculate the line-charging current in kA/phase if the line is 110 km in length and is operated at 230 kV. Neglect the effect of the earth plane.
A three-phase power of 460 MW is transmitted to a substation located 500 km from the source of power. With VS=1. per unit, VR=0.9 per unit, =5000 km, Zc=500, and =36.87, determine a nominal voltage level for the lossless transmission line based on Eq. (5.4.29) of the text. Using this result, find the theoretical three-phase maximum power that can be transferred by the lossless transmission line.
A three-phase overhead transmission line is designed to deliver 190.5 M VA at 220 kV over a distance of 63 km, such that the total transmission line loss is not to exceed 2.5 of the rated line MVA. Given the resistivity of the conductor material to be 2.84108-m, determine the required conductor diameter and the conductor size in circular mils. Neglect power losses due to insulator leakage currents and corona.
Transmission line conductance is usually neglected in power system studies. True False
The 500-kV, 60-Hz, three-phase line in Problems 4.20 and 4.41 has a 300-km length. Calculate: (a) Zc, (b) (l), and (c) the exact ABCD parameters for this line. Assume a 50C conductor temperature.
What is the necessary condition for matching transmission lines? In addition, what is a micro strip line?
Explain the carrier current protection scheme for a long transmission line. What are the important elements/components of this type of protection scheme
3. What are the causes of voltage drop and line losses in a transmission line?
Subject: Electrical & Electronics Engineering Course: Power Systems Question: In case of modeling a Long Transmission Line, what are the available procedures? Which one is the best and why? Explain.