GIC Analysis Sensitivity Analysis

See Also

 

The GIC tool allows fast computation of sensitivities of transformer with respect to GIC electric field and across transmission lines (dIGIC/dEfield).

 

Type of Sensitivity Calculation:

Line Amp Input Sensitivity can identify transmission lines with greatest effect on transformer GIC current. Click Recalculate Sensitivities to compute this type of calculation.

Transformer Ieffective GIC Sensitivity can identify transmission lines with greatest effect on transformer GIC current. Click Recalculate Sensitivities to compute this type of calculation.

Sensitivity Options:

Assumed Line Injection (Amps) or Assumed Direction (Degrees, 0 to 360) If the Type of Sensitivity Calculation is Line Amp Input Sensitivity then the Assumed Line Injection will be available. If the Transformer Ieffeective GIC Sensitivity is selected then Assumed Direction will be available.

Assumed Field Direction: (Only available if Type of Sensitivity Calculation is Transformer Ieffeective GIC Sensitivity

Parallel to Line: The Field Direction will be parallel to the line.

Specified Direction: The Field Direction will be at the angle specified in Assumed Direction (Degrees, o to 360)

To Calculate relative sensitivities for substations with high neutral GIC currents click Calculate Sub Driving Point Values and a new Tab "Substation" will appear with the sensitivities of the GIC currents to the substations.