Series Capacitor Display Objects

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Series capacitors are represented as transmission lines with two opposing parallel bars drawn on one of the segments. The series capacitor’s line thickness, color and symbol segment can be customized using the Branch Options Edit mode dialog. If the series capacitor branch is operating, but the series capacitor status is set to Bypassed, a low impedance segment will be drawn around the series capacitor symbol to indicate the capacitor has been bypassed. The capacitor status of Bypassed or In Service can be toggled in run mode if the Series Capacitor Status field is displayed on the oneline diagram. When a left-click is registered on the Series Capacitor Status field when in Run Mode, the capacitor status is toggled. Note that this is not the same as the overall branch status of Open or Closed.

Optionally, circuit breakers and pie charts can be placed on the series capacitor. Clicking the circuit breakers changes the branch status of the series capacitor.

Run Mode

Simulator's animation feature can be used to indicate the magnitude of the flow through the series capacitor, either in MW or in terms of the transformer's percentage loading. You can customize the line flow animation using the Animated Flows Options on the Oneline Display Options Dialog.

Right-clicking on a series capacitor displays the line's local menu, from which you can choose to inspect the Branch Information Dialog.

Edit Mode

New series capacitors are inserted in much the same way as transmission lines. To add a new series capacitor to the case, select Network > Series Capacitor from the Individual Insert ribbon group on the Draw ribbon tab. Then place the cursor on the first bus for the series capacitor (the from bus) and click the left mouse button. Add more segments to the series capacitor by moving the cursor and clicking with the left mouse button. To complete the new series capacitor, place the cursor on the series capacitor's other terminal (the to bus) and double-click with the left mouse button. This calls up the Branch Options dialog. The from and to bus numbers for the series capacitor should have been set automatically. If there is just one branch between the buses, the circuit number should be "1." For multiple branches between buses, you must give each a unique circuit number. Enter the thickness of the lines [in pixels] used to display the series capacitor, the number of the line segment in which you would like the series capacitor symbol drawn, and the size of the series capacitor symbol.

Enter the per unit (100 MVA base by default) resistance, reactance and charging susceptance for the series capacitor, and an MVA rating. On the Series Capacitor tab, check the box labeled Is Series Capacitor to indicate that the branch model is a series capacitor device.

If you do not want to add the series capacitor to the case, select Cancel. Otherwise click OK to add the series capacitor to the case.

To modify the parameters for an existing series capacitor, position the cursor anywhere on the device and right-click. This brings up the local menu from which you can choose to view the Line Information Dialog. This will open the Branch Options dialog. Use this dialog to adjust many of the series capacitor's electrical properties.

See Series Capacitor Information for more details on modeling series capacitors.