The Aluminum Electrical Conductor Handbook lists a dc resistance of 0.01558 ohm per 1000 ft (or 0.05112 ohm per km) at 20 degree celcius and a 60 Hz resistance of 0.0956 ohm per mile (or 0.0594 ohm per km) at 50 degree celcius for the all-aluminum Marogold conductor, which has 61 strands and whose size is 564 mm2 or 1113 kcmil. Assuming an increase in resistance at 50 degree celcius, and determine the percentage due to skin effect.

Q: A coax line has a shield braid with an inside diameter of 0.2 in. and a center conductor with a…

A:

Q: 7) Two conductors of the same length and material but of different cross-sectional area are…

A: Assume that  Length of conductor 1 =L Cross section area of conductor A =A1 Length of conductor 2=L…

Q: A 3phase 60hz line has flat vertical spacing. The conductor have a GMR of 0.0133m with 10m between…

A: A 3phase 60hz line flat vertical spacing. The conductor have a GMR of 0.0133m  10m between adjacent…

Q: 3. A 3-phase 80 km long single circuit 66 kV transposed overhead line has horizontal spacing with 5…

A:

Q: A 2-wire d.c. distributor cable AB is 2 km long and supplies loads of 100A, 150A,200A and 50A…

A: It is a two wire distribution system with distributor fed at one end: Here, the distributor is fed…

Q: 1. The choice of conductor material will depend upon the ..... and ......... ✰✰✰✰✰✰✰ in the form as…

A: The choice of conductive materials depends on many factors.Some of them are 1) Conductivity 2)…

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) Explain the demerits of non-uniform potential gradient of insulated cable. b) Insulation…

A: a) Demerits of non uniform potential gradient 1) unequal potential leads to unequal stress. stress…

Q: In electric transmission line, we can distinguish low voltages from high voltages through the…

A: For high voltage line the distance between them is also high compared to low voltage line for safety…

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

A: Need to find L

Q: single phase line has two parallel conductors 2m apart. The diameter of each conductor is 1.2 cm.…

A: The detailed solution is provided below.

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: Alumoweld is an aluminum-clad steel conductor. a. True b. False

A: The answer discusses whether the given statement about Alumoweld, an electrical conductor, is true…

Q: A three phase, 33 KV, underground cable system, consider a single core of conductor radius 0.8 cm…

A:

Q: Assume that a single-conductor belted cable has a conductor diameter of 0.681 in., inside diameter…

A: Given data: -Diameter of conductor = 0.681 in=0.681∗0.0254…

Q: In an AC LVDT system, measuring the output voltage alone gives an indication of the displacement…

A: LVDT: Linear Variable Differential Transformer This operates on principle of transformer.

Q: Single core cable design for 25 kV. The radius of conductor is 0.5 cm. The insulation material…

A: electrical gradient in a cable is given by  g=potentail differnecex lnR2R1   = Vx lnR2R1

Q: RMS VALUE OF MAXIMUM AND MINIMUM STRESSES IN INSULATION OF SINGLE CORE CABLE Emax=50kV/cm AND…

A: Here rms values  of maximum and minimum stresses in insulation of single core cable are given

Q: b) Two transmission line circuits (circuit A and circuit B) that run parallel to each other is shown…

A: The circuit can be redrawn as GMR of circuit…

Q: A two-wire DC splitter of 1Km length and resistance of each conductor (m/00030.0) and feeds the…

A:

Q: A 150 KVA, 0.4/250 kV testing transformer has 10% leakage reactance and 4% resistance on 150 kVA…

A:

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.