ABB RED615 Technical Manual page 216

Section 4
Protection functions
210
clockwise sector, a measurement from the Characteristic angle setting that has
been rotated 180 degrees.
Relay characteristic angle (RCA) is set positive if the operating current lags the
polarizing quantity and negative if the operating current leads the polarizing quantity.
GUID-CD0B7D5A-1F1A-47E6-AF2A-F6F898645640 V2 EN
Figure 104: Configurable operating sectors
Table 214: Momentary per phase direction value for monitored data view
Criterion for per phase direction information
The ANGLE_X is not in any of the defined
sectors, or the direction cannot be defined due to
low amplitude
The ANGLE_X is in the forward sector
The ANGLE_X is in the reverse sector
The ANGLE_X is in both forward and reverse
sectors, that is, when the sectors are overlapping
The value for DIR_A/_B/_C
0 = unknown
1 = forward
2 = backward
3 = both
1YHT530004D05 D
615 series
Technical Manual