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Simulator 16 User Guide - PowerWorld

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Change By<br />

The Change By action will change the selected dc line’s Setpoint by the specified Amount<br />

and could possibly change the Control Mode of the line. The Setpoint can be changed in<br />

Percent, MW, or Amps. When the dc line’s Setpoint is changed in Percent, the Setpoint is<br />

changed by the specified percentage of the present Setpoint of the line and the Control Mode<br />

remains unchanged. If the Control Mode is presently Blocked, the resulting Setpoint will be 0<br />

regardless of the Amount entered. When the Setpoint is changed in MW, the Setpoint is<br />

changed by the specified MW amount, and the Control Mode is changed to Power if the<br />

Control Mode is presently Current. If the Control Mode is Blocked or Power, then the Control<br />

Mode remains unchanged. When the Setpoint is changed in Amps, the Setpoint is changed<br />

by the specified current amount, and the Control Mode is set to Current if the Control Mode is<br />

presently Power. If the Control Mode is Blocked or Current, the Control Mode remains<br />

unchanged.<br />

When the Control Mode changes from either Power to Current or from Current to<br />

Power, the appropriate conversions are done so that the resulting Setpoint value<br />

reflects the original Setpoint and the change in Setpoint in the same units.<br />

Phase Shifter<br />

Set To<br />

The Set To action will set the middle of the regulation range of the selected phase shifter to<br />

the specified Amount. The middle of the regulation range is calculated by taking the average<br />

of the Regulation Minimum MW Flow and Regulation Maximum MW Flow. The middle of the<br />

regulation can be set in Percent or MW. If the middle of the regulation range is set in<br />

Percent, the middle of the range is set to the specified percent of the present middle of the<br />

regulation range. If the middle of the regulation range is set in MW, then the middle of the<br />

regulation range is set to the specified amount. Regardless of the method used to set the<br />

middle of the regulation range, the regulation range will remain the same, but the Regulation<br />

Minimum MW Flow and Regulation Maximum MW Flow will be adjusted so that the specified<br />

middle of the regulation range is met.<br />

Change By<br />

The Change By action will change the middle of the regulation range of the selected phase<br />

shifter by the specified Amount. The middle of the regulation range is calculated by taking<br />

the average of the Regulation Minimum MW Flow and the Regulation Maximum MW Flow.<br />

The middle of the regulation range can be changed in Percent or MW. When the middle of<br />

the regulation range is changed in Percent, the change is based on the specified percent of<br />

the present middle of the regulation range. When the middle of the regulation range is<br />

changed in MW, the middle of the present regulation range is changed by the specified<br />

amount. Regardless of the method used to change the middle of the regulation range, the<br />

regulation range will remain the same, but the Regulation Minimum MW Flow and Regulation<br />

Maximum MW Flow will be adjusted so that the specified middle of the regulation range is<br />

met.<br />

3-Winding Transformer<br />

Open<br />

The Open action will set the Status of the selected three-winding transformer to Open if the<br />

three-winding transformer Status is Closed. If the three-winding transformer Status is already<br />

Open, this action does nothing.<br />

Open Breakers<br />

Close<br />

See the special topic on Open Breakers for more detail.<br />

©2011 <strong>PowerWorld</strong> Corporation<br />

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