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Table 3 Comparison of the total GICs flowing in the transformer windings

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

Name Winding GIC for northward E field (A/phase) GIC for eastward E field (A/phase) GIC for northward E field, HV only (A/phase) GIC for eastward E field, HV only (A/phase) GIC for northward E field (% diff.) GIC for eastward E field (% diff.)
T2 HV 1.75 −6.94 1.65 −7.77 5.8 12.0
T5 Common 23.31 −18.25 21.89 −30.84 6.1 69.0
T6 HV −9.55 59.09 −8.32 53.25 12.9 9.9
T7 HV −9.55 59.09 −8.32 53.25 12.9 9.9
T8 HV −27.67 −17.89 −28.80 −21.01 4.1 17.5
T9 HV −27.67 −17.89 −28.80 −21.01 4.1 17.5
T10 HV 10.15 22.38 10.29 21.92 1.4 2.0
T11 HV 10.15 22.38 10.29 21.92 1.4 2.0
T12 Common 0.99 −8.64 3.30 −15.55 232.9 80.0
T13 HV 1.75 −6.94 1.65 −7.77 5.8 12.0
T14 Common 0.99 −8.64 3.30 −15.55 232.9 80.0
T15 Common 23.31 −18.25 21.89 −30.84 6.1 69.0
  1. The table shows the comparison of the total GICs flowing in the transformer windings for the benchmark test case (Table VIII 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). The percent differences (% diff.) data are also shown. HV stands for high voltage.