Skip to main content

Table 2 Comparison of the total GICs flowing in the ground grid of each substation

From: Assessing the hazard from geomagnetically induced currents to the entire high-voltage power network in Spain

Name GIC for northward E field (A) GIC for eastward E field (A) GIC for northward E field, HV only (A) GIC for eastward E field, HV only (A) GIC for northward E field (% diff.) GIC for eastward E field (% diff.)
Sub 3 139.85 −109.49 131.33 −185.03 6.1 69.0
Sub 4 19.98 −124.58 29.66 −139.94 48.4 12.3
Sub 5 −279.08 −65.46 −172.81 −126.07 38.1 92.6
Sub 6 −57.29 354.52 −49.92 319.51 12.9 9.9
Sub 7 0.00 0.00 0.00 0.00 0.0 0.0
Sub 8 60.90 134.30 61.74 131.53 1.4 2.1
  1. The table shows the comparison of the total GICs flowing in the ground grid of each substation for the benchmark test case (Table VII of Horton et al. 2012) when a northward or eastward uniform electric field of 1 V/km was present (first two columns after the column of names), and the GICs obtained using only the high-voltage circuit. The percent differences (% diff.) data are also shown. HV stands for high voltage.