A lead – sheath cable for underground service has a copper conductor (diameter = 0.350 inch) surrounded by 0.20-inch wall of rubber insulation. Assuming the dielectric constant of 4.3 for rubber, calculate the capacitance of the cable per mile length

Q: An infinitely long conductoris bent into an L shape as shown in Figure. If a direct current of 4 A…

A:

Q: R1 R2 D Y1 Y2 D B1 B2 Figure 2 a) Derive the expression of capacitance and inductance per phase per…

A: We need to drive the expression of capacitance and inductance per phase metre of above given line…

Q: Q1) Find the string efficiency of each line of a 3-phase is hung by a 3 strings of insulators. Each…

A:

Q: of 625 x 10^3 Slcm at 0•C and a resistance-temperature coefficient(a_40 ) at 2/509 per •C at 40-C.…

A:

Q: (a) Conductive plates are on the top and bottom face of the rectangular structure in Figure 4(a).…

A: “Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: 23) Consider a 10kv şingle-phase_cable with an insulatin material between the conductor and the…

A:

Q: Three Conductors of a 3-phase line are arranged at the corners of a triangle of sides A=2 m, B=2 m,…

A: In this question we find the phase capacitance of transmission line

Q: A certain conductor is composed of strands that are arrangend in 6 layers.  Each strand of this…

A: First, we can use the given formula to find the number of strands in the conductor: n = 3x^2 - 3x +…

Q: diameter of 10 mm. The inductance of the cable is 4 × 10-7 H/m. Ignoring inductance due to internal…

A: Diameter of core = 10 mm Inductance of the cable (L) = 4 × 10−7 H/m Relative permeability (µr) = 1…

Q: 3. Find the cross-sectional area of a round conductor in square mils if the conductor's diameter is…

A:

Q: The three conductors a,b,c of a 3 phase are arranged in a horizontal plane with Dab=2m, Dbc=2.5m.…

A:

Q: (a) The bending moment M of a beam of length / at a distance x from one end is given by M = Wx(1…

A:

Q: A single core 66 kVolts cable has a conductor diameter of 2 cm and a sheath of inside diameter 5.3…

A:

Q: As conductor radius is increased, :corona loss

A: As conductor radius is increased,the effect on corona loss will be :

Q: Problem 4. A single-core concentric cable has a capacitance of 80 pF per metre length. The relative…

A: Given: Capacitance of concentric cable, C=80 pF Relative permittivity, εr=3.5 Core diameter, d = 8…

Q: The resistance of a cylindrical brass conductor, 0,5 cm diameter and 3 m long, is 0.0108 ohm.…

A: In this question, If The resistance of a cylindrical brass conductor, 0.5 cm diameter and 3 m long,…

Q: Find the forces per unit length on two long straight Parallel conductors if each carries. a current…

A:

Q: 3. Calculate the capacitance of a 3-phase transmission line equilaterally spaced at 6m if conductor…

A:

Q: A series circuit with 10 – ohm resistor and 50 µF capacitor is suddenly connected to a de source of…

A:

Q: A 3-phase double circuit shown below, the diameter of each conductor being lcm. Assuming the current…

A: Need to find L

Q: The insulation resistance of a single-core cable is 432 Mohm per km. If the core diameter is 2.87 cm…

A:

Q: Calculate the geometric mean radius (GMR) for the arrangement of parallel conductors shown below if…

A:

Q: Calculate the dc resisrance of aluminum in ohms per meter if the diameter of the conductor is 3 cm

A: For an aluminium conductor, if d is the diameter, then the dc resistance in ohms per meter can be…

Q: 4. The value of a at OdegC of a conductor is 1/236 per ind the value of a 18degC.

A:

Q: A conductor has a length of (50m) and cross-section area of (Imm?),i the resistance of conductor is…

A:

Q: 2- Show that the inductance of conductor due to internal flux is given by: L= 0.00000005 H/ M

A: The solution is given below .

Q: In a two layered cylindrical electrode system with a length of 15 cm, radii of the cylinders are: r…

A:

Q: Calculate the geometric mean radius (GMR) for the arrangement of parallel conductors shown below if…

A: here we have to find the Geometric mean radius.

Q: Three Conductors of a 3-phase line are arranged at the corners of a triangle of sides A=2 m, B=2 m,…

A: (a) Given  Three phase line are arranged at the corners of a triangle of sides A=2 m, B=2 m,and C=4…

Q: A double-circuit its capacitance to neutral per mile. line is shown below. The conductor radius is…

A:

Q: 1. A current sheet K = 30.0ay A/m is on Z = - 5 m of a conductor is on the y-axis with a current of…

A: Given data, Current density is given K=30 ay A/m Conductor is placed on z = -5 on y axis. Current is…

Q: Determine the inductance per unit length of a coaxial cable with an inner radius a and outer radius…

A: Flux through a surface is Dot product of Flux density and area. Flux is also equals to Inductance…

Q: a. A two straight parallel conductors of 2 m length separated by 10 cm, each carries current of 14 A…

A: a.  The force on the conductors will be equal in magnitude as the length of the conductor and…

Q: Three Conductors of a 3-phase line are arranged at the corners of a triangle of sides 20, 10, and 18…

A:

Q: A piece of parallel wire line has a nominal capacitance of 31.5 F/ m, and 9 H inductance per meter.…

A: we need to determine distance between two parallel wire lines in milimeter.

Q: Three Conductors of a 3-phase line are arranged at the corners of a triangle of sides A=2 m, B=3 m,…

A: Radius of conductor =d2=1.35cm2=0.675cm = 0.675×10-2 m GMR   = 0.675×10-2 m because all the radii…

Electrical Heating Unit

The conversion of electrical energy to heat energy is known as electric heating. The heating system that converts the electrical energy to heat energy for various application is called electrical heating unit. Electricity is employed as the firing mechanism in electric heating systems, which transforms electric current to heat. Electric heaters have heating elements in the form of electric resistors.