Electrical EngineeringA 240V single phase circuit is run in conduit in 2 core 70°C PVC/PVC cable having livea)conductor of 2.5 mm (leperating is approximately 20A) and protection conductor cable (cpc) of1.5 mmIf the circuit is protected by 30 HRC fuse, with circuit length of 55 m, and Zg is 0.8 0EVALUATE whether the initial cip.c. size provided is adequate. Given 2 core PVC/PVCbunched cable impedance is (R +R2) 26.9 m2/m and k -115.

An single phase circuit is a two wire circuit consisting of a power , neutral and phase wires.

Electrical Engineering A 240V single phase circuit is run in conduit in 2 core 70°C PVC/PVC cable having live conductor of 2.5 mm² (loperating is approximately 20A) and protection conductor cable (cpc) of 1.5 mm². If the circuit is protected by 30 HRC fuse, with circuit length of 55 m, and Ze is 0.8 0. EVALUATE whether the initial c.p.e. size provided is adequate. Given 2 core PVC/PVC bunched cable impedance is (R₁ + R₂) - 26.9 m2/m and k = 115.

Electrical Engineering A 240V single phase circuit is run in conduit in 2 core 70°C PVC/PVC cable having live conductor of 2.5 mm² (loperating is approximately 20A) and protection conductor cable (cpc) of 1.5 mm². If the circuit is protected by 30 HRC fuse, with circuit length of 55 m, and Ze is 0.8 0. EVALUATE whether the initial c.p.e. size provided is adequate. Given 2 core PVC/PVC bunched cable impedance is (R₁ + R₂) - 26.9 m2/m and k = 115.

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 3.37P: Three single-phase two-winding transformers, each rated 25MVA,54.2/5.42kV, are connected to form a...

See similar textbooks

Similar questions

Consider a 3-phase, 50 HZ, 11 KV distribution system. Each of conductors is suspended by an insulator string having two identical porcelain insulators. The self-capacitance of the insulator is 5 times the shunt capacitance between link and ground. Find the voltages across two insulators.
Electrical Engineering a) A 240V single phase circuit is run in conduit in 2 core 70°C PVC/PVC cable having live conductor of 2.5 mm? (Ioperating is approximately 20A) and protection conductor cable (cpc) of 1.5 mm?. If the circuit is protected by 30 HRC fuse, with circuit length of 55 m, and ZE is 0.8 2. EVALUATE whether the initial c.p.c. size provided is adequate. Given 2 core PVC/PVC bunched cable impedance is (R1 + R2) = 26.9 m2/m and k = 115.
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 minimum Electric stress of the cable is
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
A 30 kV single core cable has a conductor dimeter of 2 cm and a sheath of inside diameter 6 cm. Find the maximum (peak value) and minimum stress (peak value) in the insulation.
:Two circuits are arrange as shown in figure (1), (a and b) each one of them has two identical conductors, the vertical distance between each conductor in the same circuit is 1 m, the distance horizontlly between circuits is 30 cm, take 1 cm as diamter for each conductors. Derermine the inductance per km of the double circuit ? a a' b' FIGURE (1) --
Which of the following statements is/are true? A In purely resistive circuit, the current lags voltage. (B In purely capacitive circuit, the voltage lags current. In purely resistive circuit, the current is in phase with voltage. D In purely inductive circuit, the current leads voltage.
Q4 (a) Define three (3) advantages of alternating current (AC) for long distance power transmission compare to direct current (DC).
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.......
Which of the following statements is/are true? (A In purely inductive circuit, the current leads voltage. (B) In purely resistive circuit, the current lags voltage. C In purely resistive circuit, the current is in phase with voltage. D In purely capacitive circuit, the voltage lags current.
The direct electrical connection of the windings allows transient over voltages to pass through the auto transfonner more easily, and that is an important disadvantage of the autotransformer. (a) True (b) False
Consider a bank of this single-phase two-winding transformers whose high-voltage terminals are connected to a three-phase, 13.8-kV feeder. The low-voltage terminals are connected to a three-phase substation load rated 2.0 MVA and 2.5 kV. Determine the required voltage, current, and MVA ratings of both windings of each transformer, when the high-voltage/low- voltage windings are connected (a) Y-, (b) -Y, (c) Y-Y, and (d) -.