A 1.00 km cable having a cross-sectional area of 0.5 cm? is to be constructed out of equal lengths of copper and aluminium. The resistivity values of copper (Cu) and aluminium (Al) material are pcu = 1.68 x 108 2m and PAI = 2.65 x 108 Qm, respectively. Two designs could be used to make the 1.00 km cable as shown in Figure Q3(a)(i) and Figure Q3(a)(ii). +1.00 km- Cu Al A-0.5 cm2. F1.00 km- Cu ) Al (1) '0.5km 0.5km (ii) (i) Figure Q3(a) (i) First design of the cable is to solder side by side of the two parallel 1.00 km copper and aluminium cables as shown in Figure Q3(a)(i). The cross-sectional areas of copper and aluminium cables are halved of that of the constructed cable. Calculate the total resistance of the cable. (ii) Second design of the cable is to solder a 0.50 km aluminium cable at the end of a 0.50 km copper cable as shown in Figure Q3(a)(ii). Calculate the total resistance of the cable. (iii) Justify which design of the cable gives better electrical performance.

A 1.00 km cable having a cross-sectional area of 0.5 cm? is to be constructed out of equal lengths of copper and aluminium. The resistivity values of copper (Cu) and aluminium (Al) material are pcu = 1.68 x 108 2m and PAI = 2.65 x 108 Qm, respectively. Two designs could be used to make the 1.00 km cable as shown in Figure Q3(a)(i) and Figure Q3(a)(ii). +1.00 km- Cu Al A-0.5 cm2. F1.00 km- Cu ) Al (1) '0.5km 0.5km (ii) (i) Figure Q3(a) (i) First design of the cable is to solder side by side of the two parallel 1.00 km copper and aluminium cables as shown in Figure Q3(a)(i). The cross-sectional areas of copper and aluminium cables are halved of that of the constructed cable. Calculate the total resistance of the cable. (ii) Second design of the cable is to solder a 0.50 km aluminium cable at the end of a 0.50 km copper cable as shown in Figure Q3(a)(ii). Calculate the total resistance of the cable. (iii) Justify which design of the cable gives better electrical performance.

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 4.36MCQ: When the electric field strength at a conductor surface exceeds the break-down strength of air,...

See similar textbooks

Similar questions

ire D are made from the same material of resistivity p-2.0 - mm, and those of wire D are Lo-0.50.m and ro-0.75 mm. The wires are and 2? C
A hard-drawn copper conductor has a diameter of 0.41 in. What is the cross sectional area of this conductor in cmil?
Determine the GMR of each of the unconventional stranded conductors shown in Figure 4.30. All strands have the same radius r.
To size conductors and overcurrent devices for source circuits, you must multiply the module string short-circuit current by ______________________.
When the electric field strength at a conductor surface exceeds the break-down strength of air, current discharges occur. This phenomenon is called _________.
If the cross sectional area of a conductor is doubled, then the resistance of the conductor remains the same. becomes half of the initial value. becomes double the initial value. becomes four times the initial value.
In this piece, we'll talk about how radio communication, coaxial cable, fiber-optic cable, and twisted-pair cable are different from each other.
5. Pure iron has a resistivity of 10.0 x 10-6 ohm-cm at 20 ° C. The resistivity of copper at this temperature is 1.77 × 10-6 ohm-cm. Consider two different conductors, each 1 meter long and a square straight section 0.8 cm on each side. Conductor A is formed by joining end to end a 50 cm long iron bar with a similar copper rod. Conductor B consists of a copper rod and an iron rod 1 meter long with a 0.4 by 0.8 cm cross section, joined laterally. What is the resistance in ohms of each conductor, between the ends 1 meter apart? If a steady current flows in conductor A, in which material will the power dissipation be greater. Answer the same question for bar B.
The principle operation of LVDT is based on the variation of Select one a. Self inductance b. Reluctance c. Mutual inductance d. Permanence
QUESTION 2 a) The total AAC cross sectional area is 544.7522 x 106 m2. Each strands having a radius of 0.34 cm and length of conductor is 2 m. Assume that the increase in resistance due to spiraling is 1.4 %. Given the resistivity of AAC at 20 °C is 2.83 x 10* Qm and T = 228 °C. Determine the total composed strands and DC resistance at 30 °C. b) Figure 2 shows the configuration of a single-phase two-conductor in the transmission line. Calculate the total inductance "Ltotal" of the line. (Given, rx = 0.02 m and ry-0.03 m) 3' 1.20 m 0.22 m 2.09 m 0.44 m 2" Conductor 'x' Conductor 'y' Figure 2
을 A circules ring of 3 turns iis made of Conducting wire. Now same wire The M.F. is bent to form ring of ctuong centre ( I Aome) at centre s B. Then flo M. F. at
Determine the mutual inductance between a very long straightwire and a conducting circular loop of radius “b” m set up “d” mapart on the same plane as shown figure.Problem: