Simulator 16 User Guide - PowerWorld

The amount of Mvar shift that would be implemented by switching one tap position from the
current position. This sensitivity indicates the ability of the transformer to control Mvars.
Impedance Correction Table
Specifies the number of the transformer's corresponding transformer impedance correction table.
Transformer impedance correction tables are used to specify how the impedance of the
transformer should change with the off-nominal turns ratio. If this number is 0, no impedance
correction table is associated with the transformer, and the impedance of the transformer will
thus remain fixed as the tap ratio changes. Valid impedance correction table numbers range from
1 to 63. To assign an existing impedance correction table to the transformer, enter the existing
table's number. To view the existing impedance correction tables, click the Insert/View
Impedance Correction Table button, which brings up the Transformer Impedance Correction
Dialog. To define a brand new impedance correction table for the transformer, enter an unused
table number and then click Insert/View Impedance Correction Table to prescribe the
correction table. Note that the association between a transformer and an impedance correction
table is not finalized until you select either OK or Save on the Branch Information Dialog or
Branch Options dialog.
View Transformer Correction Table or Insert Transformer Correction Table
Click on this button either to view or to insert transformer correction tables. Clicking on this
button displays the Transformer Impedance Correction Dialog. Note that a table must contain at
least two points in order to be defined.
The Time Step Options tab contains control options specific for the Time Step Simulation tool.
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