how to find the inductance of following ?
The three conductors of 3-phase overhead line are arranged in a horizontal plane with a spacing of 4 m
between adjacent conductors. The diameter of each conductor is 2 cm. Determine the inductance per
km per phase of the line assuming that the lines are transposed .
- NCSLv 73 weeks ago
D = ³√(4*4*8) m = 5.04 m
wire radius r = 1 cm = 0.01 m
L = 2e-7H/m * ln(D/r) = 2e-7H/m * ln(5.04/0.01)
L = 1.24e-6 H/m
and so per kilometer, that's 1.24e-3 H
Hope this helps!Source(s): Example 4.18 here: http://www.ee.uidaho.edu/ee/power/jlaw/COURSES/ECE...