* FILE: SAMPLE4.KDA * Created on March 12, 2001 by Ian Simpson * Example of a 19 x 20 m ground grid with rods and angled conductors in * two layered soil and two transmission line towers. * The towers are not connected to the substation grid. * There is a fault at the first tower, causing 1000 amps ground currrent. * 400 amps returns from the ground at the Substation due to a grounded Y * transformer connection. soil 47 28 1.3 electrode Substation * Perimeter conductors * These are entered using the intelligent format a0 b19 c.6 x15 s3 r.006 x20 y14 s1 y0 s3 x6 s1 y10 a8 b8 x0 y19 * Injected current current -400.0 * Other conductors * These are entered using the basic x,y,z format 0.0 17.0 0.600 17.0 17.0 0.6 0.006 3 12.0 19.0 0.600 20.0 11.0 0.6 0.006 1 18.0 16.0 0.600 18.0 0.0 0.6 0.006 3 20.0 2.0 0.600 6.0 2.0 0.6 0.006 1 8.0 0.0 0.600 8.0 19.0 0.6 0.006 3 0.0 10.0 0.600 20.0 10.0 0.6 0.006 3 2.0 8.0 0.600 2.0 19.0 0.6 0.006 1 13.0 17.0 0.600 13.0 0.0 0.6 0.006 3 * rods 0.0 19.0 0.100 0.0 19.0 3.1 0.006 1 15.0 19.0 0.100 15.0 19.0 3.1 0.006 1 20.0 14.0 0.100 20.0 14.0 3.1 0.006 1 20.0 0.0 0.100 20.0 0.0 3.1 0.006 1 6.0 0.0 0.100 6.0 0.0 3.1 0.006 1 0.0 8.0 0.100 0.0 8.0 3.1 0.006 1 13.0 10.0 0.100 13.0 10.0 3.1 0.006 1 * Tower #1 electrode Tower #1 -54 -54 0.1 -54 -54 3.1 0.0095 1 -46 -54 0.1 -46 -54 3.1 0.0095 1 -46 -46 0.1 -46 -46 3.1 0.0095 1 -54 -46 0.1 -54 -46 3.1 0.0095 1 current 1000 * Tower #2 electrode Tower #2 -104 -104 0.1 -104 -104 3.1 0.0095 1 -96 -104 0.1 -96 -104 3.1 0.0095 1 -96 -96 0.1 -96 -96 3.1 0.0095 1 -104 -96 0.1 -104 -96 3.1 0.0095 1 end