A three-phase double circuit line is composed of ACSR Drake conductors arranged as shown. Calculate: (a) the line-to-neutral capacitance per mile, (b) the line-to-neutral capacitive reactance per mile, (c) the per phase inductance per mile, and (d) the per phase inductive reactance per mile.

For transferring electrical power at 220 kV, six conductors of ACSR Drake constitute a 60Hz double circuit three phase line arranged as shown below. The vertical spacing between consecutive conductors is 14ft; the longer horizontal distance is 32ft whereas the shorter horizontal distance is 25ft. a. Find the inductance per phase per mile and the inductive reactance per phase in ohms per mile. b. Find the capacitive reactance to neutral in ohm-miles. c. Find the resistance per phase per mile in ohms per miles. d. If the length of the line is 90 miles then draw an equivalent circuit of the line and analyse the open circuit and short circuit performance of the line. e. Find the maximum power we can transmit over the line. f. If the line is delivering power to a load of 20MW at 0.8 power factor lagging then find the voltage at the receiving end of the line. Also, Determine the voltage regulation, losses and efficiency of the line. g. If a fixed shunt compensation of 3 MVAr is attached at…

For the overhead line of the configuration shown in Figure below operating at 60 Hz and a conductortemperature of 708C, determine the resistance per phase, inductive reactance in ohms/mile/phase,and the current carrying capacity of the overhead line. Each conductor is ACSR Cardinal of Table A.4.

4.18 A 230-kV, 60-Hz, three-phase completely transposed overhead line has one ACSR 954 kcmil conductor per phase and flat horizontal phase spac- ing, with 7 m between adjacent conductors. Determine the inductance in H/m and the inductive reactance in Q/km.

GMR calculate

Find the inductive reactance per phase in ohms per mile, and the capacitativereactance to neutral in ohm-miles for a three-phase line that has three equilaterallyspaced conductors of ACSR Dove. The conductors are 10 feet apart, and the operating frequency is 60 Hz. The GMR of the Dove conductor is r0 = 0.0313 feet andthe radius of the Dove conductor is r = 0.4635 inches. (GMR stands for geometricmean radius and r0is the equivalent radius that is adjusted to account for the fluxlinked inside the wire in inductance calculations.

Please provide Handwritten answer

The three conductors of a 3-phase, 3-wire line are arranged at the corners of a triangle, the sides of which are 1 m, 1.3 m and 2 m. Calculate the inductance and capacitance per km of the line, when the conductors are transposed. The conductors are 1.5 cm diameter. [B.T.E. A.P. Power Systems II, T & D, June 1994) (Ans. 1.0923 mH: 0.0107 µF]

Q1: a) Discuss the effect of earth on the capacitance of a line : b) Derive in expression for the capacitance to neutral per phase per Km of a single phase overhead transmission line, taking into account the effect of earth. c) Derive in expression for the capacitance to neutral per phase per Km of a 3- phase overhead transmission line when conductors are of equilateral spacing.

A 60 Hz, three-phase, transposed transmission line, is designed with three bobolink conductors per phase, in horizontal arrangement as shown in the figure below. Distance between consecutive phases is D = 6.2 m and distance among bundle conductors is h =0.5m. Each conductor has a radius of 18 mm and a GMR of 14.39mm. The per phase resistance is 1.677x10-5 2/m. r= 18 mm GMR= 14.39 mm a b h D D The per phase shunt admittance assuming zero conductance in µO/km is: О a., 5.4347 O b. j5.3316 О с /4.2266 O d. j4.0973 O e. 59630.2922 + j10.9770