Figure 62: Directional Quadrilateral Characteristic - GE MiCOM P40 Agile Technical Manual

Single breaker current differential (with distance)

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Chapter 7 - Distance Protection

Directional Line

Forward direction

Reverse direction

Figure 62: Directional Quadrilateral Characteristic

This product has a Delta Directional element that is normally used to directionalise the Distance protection.

By default, the Delta Directional element is enabled (Dir. Status in DELTADIRECTIONAL set to Enabled). In this

case, the Directional Line for the Quadrilateral is derived using superimposed fault-current (Delta I). When using the

Delta Directional element, the Directional Line angle has a default value of 60º, but you can change it with the Dir.

Char Angle setting.

If you want to use a conventional directional technique, then you can do this by disabling the Delta Directional

element. The protection will then use a conventional directional element with a fixed angle of 60º.

The following figure illustrates two Offset zones that have been converted into Directional Forward zones by the

overlay of a Directional Line. An Offset zone is also shown for reference.

P54x1i-TM-EN-1

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