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- One thousand circular mils or 1 kcmil is sometimes designated by the abbreviation MCM75C. Data for commercial bare-aluminum electrical conductors lists a 60 Hz resistance of 0.0080 ohm per kilometer at for a 793-MCM AAC conductor. Determine the cross-sectional conducting area of this conductor in square meters. Find the 60 Hz resistance of this conductor in ohms per kilometer at 50C.The Aluminum Electrical Conductor Handbook lists a dc resistance of 0.01558 ohm per 1000 ft at 20C and a 60-Hz resistance of 0.0956 ohm per mile at 50C for the all-aluminum Marigold conductor, which has 61 strands and whose size is 1113 kcmil. Assuming an increase in resistance of 2 for spiraling, calculate and verify the dc resistance. Then calculate the dc resistance at 50C, and determine the percentage increase due to skin effect.Shield wires located above the phase conductors protect the phase conductors against lightning. True False
- A.Derive the formula for the internal inductance in H/m of a hollow conductor having inside radius r1 and outside radius r2 and also determine the expression for the inductance in H/m of a single-phase line consisting of the hollow conductors described above with conductors spaced a distance D apart.Derive the formula for the internal inductance in H/m of a hollow conductor having inside radius r1 and outside radius r2 and also determine the expression for the inductance in H/m of a single-phase line consisting of the hollow conductors described above with conductors spaced a distance D apart.The three conductors A, B and C of a 3-φ line are arranged in a horizontal plane with DAB = 2 m and DBC = 2·5 m. Find line-to-neutral capacitance per km if diameter of each conductor is 1·24 cm. The conductors are transposed at regular intervals
- The three conductors A, B and C of a 3-φ line are arranged in a horizontal plane with DAB = 2 m and DBC= 2·5 m. Find line-to-neutral capacitance per km if diameter of each conductor is 1·24 cm. The conductors are transposed at regular intervals. [0·0091 μF/km]The conductors of a 10 km long, single phase, two wire line are seperated by a distance of 1.5 m. The diameter of each conductor is 1 cm. If the conductors are of copper, the inductance of the circuit is ??The three conductors of a 3-φ line are arranged at the corners of a right angled isosceles triangle. If each equal side of this triangle is 2 m, find line-to neutral capacitance per km. Take the diameter of each conductor as 1·24 cm. The conductors are transposed at regular intervals. [0·0094 μF/km]
- A standard conductor having a radius of 1 cm. Find the inductance for strandard and hollow conductor both at a distance of 2.5 m and mention which one is higher.A three phase, 11 KV, underground cable system, consider a single core of conductor radius 0.5 cm diameter and lead sheath of 1.25 cm. The core and lead sheath have been separated by two intersheaths with radius 0.75 cm and 1 cm. Draw the cable core, dielectric and intersheath layers showing the thickness of each layer, then determine the voltages on the both intersheaths. Suppose the maximum stress on the layers are the same.A three phase, 33 KV, underground cable system, consider a single core of conductor radius 0.8 cm diameter and lead sheath of 2.3 cm. The core and lead sheath have been separated by two intersheaths with radius 1.3 cm and 1.8 cm. Draw the cable core, dielectric and intersheath layers showing the thickness of each layer, then determine the voltages on the both intersheaths. Suppose the maximum stress on the layers are the same. Please i need it know please