Chapter 5, Problem 5.12P

A 5 km long, 3-phase 34.5 kV line has a horizontal configuration of 4 ft. spacing. The conductor is 336.4 ACSR with GMR of 0.0244. What is the inductance of the line? *         A. 7.63 mH       B. 4.76 mH       C. 5.33 mH       D. 6.49 mH

A 3-phase transmission line has its conductors at the corners of an equilateral triangle with side 3 m. The diameter of each conductor is 1.63 cm. The inductance of the line per phase per km is (a) 1.232 mH (c) 1.093 mH (b) 1.182 mH (d) 1.043 mH

b) 100 km, 132 kV, 50 Hz transmission line has per phase resistance R=0.036 (Q/km). The conductors of this line are arranged as shown in the Figure 4, determine: 13 т 13 m di 9. a di di di ri=2 cm dı = 40 cm Figure 4 i. Geometric Mean Distance (GMD), Geometric Mean Radius (GMR1) and Geometric Mean Radius (GMRC) ii. Inductance and Capacitance of the line Series Impedance (Z) and Shunt Admittance (Y) of the line iv. Transmission line equivalent circuit. V. ABCD values

A 3-phase 80 km long single circuit 66 kV transposed overhead line has horizontal spacing with 5 m between adjacent conductors and 6 m between outer conductors. The conductor diameter is 2.5 cm. Find the Inductance per phase

A 60-Hz, 110-mile, three-phase overhead transmission line, constructed of ACSR conductors, has a series impedance of (0.1826 + j0.784) ohm/mi per phase and a shunt capacitive reactance-to- neutral of (-j185.5 x 10^3) ohm-mi per phase. Using the nominal pi circuit for a medium-length transmission line, (a) determine the total series impedance and shunt admittance of the line. (b) Compute the voltage, the current, and the real and reactive power at the sending end if the load at the receiving end draws 220 MVA at unity power factor and at a line-to-line voltage of 230 kV. (c) Find the percent voltage regulation of the line.

A three phase transmission line has horizontal configuration with a spacing of 6 meters between adjacent conductors and 12 meters between outer conductors. The radius of each conductors is 1.81 centimeters. The value inductive reactance for 1 kilometer is: a. 1.579 Ohms b. 0.789 Ohms c. 2.579 Ohms d. 3.579 Ohms

A rectangular surge of 500 kV 3µs travels along the terminated line by an inductance of2mH. If the line is having a surge impedance of 600 Ω, the voltage across the inductanceis equal to

QUESTION 2.3 Find the capacitance to neutral for the signal-circuit, three-phase, 345-kV line with conductors having an outside diameter of 1.075 in. with phase configuration forming an "H” system (i.e., a horizontal phase configuration). The adjacent phase separation of the conductors is 20.0 ft. A 20.0 ft B Figure 2. 20.0 ft C

3-) A three-phase overhead line of 380 kVer with a length of 250 km will be installed. The conductors have a cross section of 1018 mm² and a diameter of 36 mm. of conductors The roughness factor is 0.8 and the spacing between the conductors is 7 m. Since it is 8-0.95 along the line; a) Corona voltage b) Calculate the total corona loss at the mains voltage according to the Peek and Peterson formulas.