Start: Fri Mar 16 11:13:34 2001 KWIKGRID DC Version 1.2. Compiled on: Mar 13 2001 Copyright: Ground-it.com Consulting Ltd. -------------------------------------------------------------- * 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. * Perimeter conductors * These are entered using the intelligent format * Injected current * Other conductors * These are entered using the basic x,y,z format * rods * Tower #1 * Tower #2 Upper layer resistivity: 47.0000 ohm-meters, depth: 1.3000 meters Deep layer resistivity: 28.0000 ohm-meters. Calculation accuracy selected: 0.001000 used: 0.001000 METRIC units of measure. Electrode: Substation Injected current -400.0000 amps # X origin Y origin Z origin X extrem Y extrem Z extrem Radius --- <--------><--------><--------><--------><--------><--------><--------> 1 0.000 19.000 0.600 5.000 19.000 0.600 0.006 2 15.000 19.000 0.600 20.000 14.000 0.600 0.006 3 20.000 14.000 0.600 20.000 9.333 0.600 0.006 4 20.000 0.000 0.600 6.000 0.000 0.600 0.006 5 6.000 0.000 0.600 6.000 10.000 0.600 0.006 6 8.000 8.000 0.600 0.000 8.000 0.600 0.006 7 0.000 8.000 0.600 0.000 19.000 0.600 0.006 8 0.000 17.000 0.600 5.667 17.000 0.600 0.006 9 12.000 19.000 0.600 20.000 11.000 0.600 0.006 10 18.000 16.000 0.600 18.000 10.667 0.600 0.006 11 20.000 2.000 0.600 6.000 2.000 0.600 0.006 12 8.000 0.000 0.600 8.000 6.333 0.600 0.006 13 0.000 10.000 0.600 6.667 10.000 0.600 0.006 14 2.000 8.000 0.600 2.000 19.000 0.600 0.006 15 13.000 17.000 0.600 13.000 11.333 0.600 0.006 16 0.000 19.000 0.100 0.000 19.000 1.294 0.006 17 15.000 19.000 0.100 15.000 19.000 1.294 0.006 18 20.000 14.000 0.100 20.000 14.000 1.294 0.006 19 20.000 0.000 0.100 20.000 0.000 1.294 0.006 20 6.000 0.000 0.100 6.000 0.000 1.294 0.006 21 0.000 8.000 0.100 0.000 8.000 1.294 0.006 22 13.000 10.000 0.100 13.000 10.000 1.294 0.006 31 0.000 19.000 1.306 0.000 19.000 3.100 0.006 32 15.000 19.000 1.306 15.000 19.000 3.100 0.006 33 20.000 14.000 1.306 20.000 14.000 3.100 0.006 34 20.000 0.000 1.306 20.000 0.000 3.100 0.006 35 6.000 0.000 1.306 6.000 0.000 3.100 0.006 36 0.000 8.000 1.306 0.000 8.000 3.100 0.006 37 13.000 10.000 1.306 13.000 10.000 3.100 0.006 38 5.000 19.000 0.600 10.000 19.000 0.600 0.006 39 10.000 19.000 0.600 15.000 19.000 0.600 0.006 40 20.000 9.333 0.600 20.000 4.667 0.600 0.006 41 20.000 4.667 0.600 20.000 0.000 0.600 0.006 42 5.667 17.000 0.600 11.333 17.000 0.600 0.006 43 11.333 17.000 0.600 17.000 17.000 0.600 0.006 44 18.000 10.667 0.600 18.000 5.333 0.600 0.006 45 18.000 5.333 0.600 18.000 0.000 0.600 0.006 46 8.000 6.333 0.600 8.000 12.667 0.600 0.006 47 8.000 12.667 0.600 8.000 19.000 0.600 0.006 48 6.667 10.000 0.600 13.333 10.000 0.600 0.006 49 13.333 10.000 0.600 20.000 10.000 0.600 0.006 50 13.000 11.333 0.600 13.000 5.667 0.600 0.006 51 13.000 5.667 0.600 13.000 0.000 0.600 0.006 Electrode: Tower #1 Injected current 1000.0000 amps # X origin Y origin Z origin X extrem Y extrem Z extrem Radius --- <--------><--------><--------><--------><--------><--------><--------> 23 -54.000 -54.000 0.100 -54.000 -54.000 1.291 0.009 24 -46.000 -54.000 0.100 -46.000 -54.000 1.291 0.009 25 -46.000 -46.000 0.100 -46.000 -46.000 1.291 0.009 26 -54.000 -46.000 0.100 -54.000 -46.000 1.291 0.009 52 -54.000 -54.000 1.310 -54.000 -54.000 3.100 0.009 53 -46.000 -54.000 1.310 -46.000 -54.000 3.100 0.009 54 -46.000 -46.000 1.310 -46.000 -46.000 3.100 0.009 55 -54.000 -46.000 1.310 -54.000 -46.000 3.100 0.009 Electrode: Tower #2 # X origin Y origin Z origin X extrem Y extrem Z extrem Radius --- <--------><--------><--------><--------><--------><--------><--------> 27 -104.000 -104.000 0.100 -104.000 -104.000 1.291 0.009 28 -96.000 -104.000 0.100 -96.000 -104.000 1.291 0.009 29 -96.000 -96.000 0.100 -96.000 -96.000 1.291 0.009 30 -104.000 -96.000 0.100 -104.000 -96.000 1.291 0.009 56 -104.000 -104.000 1.310 -104.000 -104.000 3.100 0.009 57 -96.000 -104.000 1.310 -96.000 -104.000 3.100 0.009 58 -96.000 -96.000 1.310 -96.000 -96.000 3.100 0.009 59 -104.000 -96.000 1.310 -104.000 -96.000 3.100 0.009 Maximum number of series terms required 5 Average number of series terms used 4 Electrode #1 Substation. Injected Current: -400.0000 amps Potential Rise: -254.5970 volts, Resistance: 0.6365 ohms Cond # length amps/meter amps to soil cum amps 1 5.000 -1.99188326 -9.9594163 -9.959416 2 7.071 -1.66309796 -11.7598785 -21.719295 3 4.667 -1.62357617 -7.5766888 -29.295984 4 14.000 -2.03555061 -28.4977085 -57.793692 5 10.000 -1.60809385 -16.0809385 -73.874631 6 8.000 -1.43345159 -11.4676127 -85.342243 7 11.000 -2.07452798 -22.8198077 -108.162051 8 5.667 -1.59487715 -9.0376372 -117.199688 9 11.314 -1.25555359 -14.2049673 -131.404656 10 5.333 -1.22236761 -6.5192939 -137.923949 11 14.000 -1.52954834 -21.4136768 -159.337626 12 6.333 -1.54099875 -9.7596588 -169.097285 13 6.667 -1.36870960 -9.1247307 -178.222016 14 11.000 -1.60315379 -17.6346917 -195.856707 15 5.667 -1.47462841 -8.3562276 -204.212935 16 1.194 -1.85265316 -2.2120679 -206.425003 17 1.194 -1.43654839 -1.7152388 -208.140242 18 1.194 -1.47929280 -1.7662756 -209.906517 19 1.194 -1.85229313 -2.2116380 -212.118155 20 1.194 -1.91726593 -2.2892155 -214.407371 21 1.194 -1.85498870 -2.2148565 -216.622227 22 1.194 -0.38054665 -0.4543727 -217.076600 31 1.794 -5.49510368 -9.8582160 -226.934816 32 1.794 -4.58774599 -8.2304163 -235.165232 33 1.794 -4.60215790 -8.2562713 -243.421503 34 1.794 -5.46688813 -9.8075973 -253.229101 35 1.794 -5.42263006 -9.7281983 -262.957299 36 1.794 -5.25583437 -9.4289669 -272.386266 37 1.794 -3.33859461 -5.9894387 -278.375705 38 5.000 -2.00015664 -10.0007832 -288.376488 39 5.000 -1.75905429 -8.7952714 -297.171759 40 4.667 -2.14280175 -9.9997415 -307.171501 41 4.667 -1.97921864 -9.2363537 -316.407855 42 5.667 -1.50971679 -8.5550618 -324.962916 43 5.667 -1.17320907 -6.6481847 -331.611101 44 5.333 -1.58137133 -8.4339804 -340.045081 45 5.333 -1.58351231 -8.4453990 -348.490480 46 6.333 -1.31483874 -8.3273120 -356.817792 47 6.333 -1.53952141 -9.7503023 -366.568095 48 6.667 -1.18561765 -7.9041177 -374.472212 49 6.667 -1.30668474 -8.7112316 -383.183444 50 5.667 -1.37439892 -7.7882605 -390.971705 51 5.667 -1.59322861 -9.0282955 -400.000000 Electrode #2 Tower #1. Injected Current: 1000.0000 amps Potential Rise: 2959.7242 volts, Resistance: 2.9597 ohms Cond # length amps/meter amps to soil cum amps 23 1.190 56.72316768 67.5289311 67.528931 24 1.190 56.75180187 67.5630201 135.091951 25 1.190 56.78668204 67.6045450 202.696496 26 1.190 56.75151885 67.5626832 270.259179 52 1.791 101.83687964 182.3389330 452.598112 53 1.791 101.88799625 182.4304573 635.028570 54 1.791 101.95022475 182.5418774 817.570447 55 1.791 101.88749115 182.4295529 1000.000000 Electrode #3 Tower #2: Potential Rise: 51.7436 volts Cond # length amps/meter amps to soil cum amps 27 1.190 0.09858939 0.1173707 0.117371 28 1.190 0.00642032 0.0076434 0.125014 29 1.190 -0.11332910 -0.1349183 -0.009904 30 1.190 0.00637235 0.0075863 -0.002318 56 1.791 0.17704166 0.3169931 0.314675 57 1.791 0.01260183 0.0225636 0.337239 58 1.791 -0.20086506 -0.3596489 -0.022410 59 1.791 0.01251615 0.0224102 -0.000000 End: Fri Mar 16 11:13:34 2001 Calculation time: 0 sec.