Three-Phase Power Directional Element Dpsrdir - ABB RELION REX640 Technical Manual

Section 5
Protection related functions
5.14
5.14.1
5.14.2
5.14.3
5.14.4
1184

Three-phase power directional element DPSRDIR

Identification
Function description
Three-phase power directional element
Function block
GUID-939B3CEC-35F8-4F8E-B13E-3A37BF9B4196 V1 EN
Figure 639: Function block
Functionality
The three-phase power directional element function DPSRDIR is used to detect
positive-sequence power direction. The output of the function is used for blocking or
releasing other functions in protection scheme.
The directional positive-sequence power protection contains a blocking functionality
which blocks function output and resets Timer.
DPSRDIR executes on the direction of positive-sequence power and
not the value. If overpower or underpower is needed, refer to
DOPPDPR and DUPPDPR. DPSRDIR is generally used for
directional controls.
Analog channel configuration
DPSRDIR has two analog group inputs which must be properly configured.
Table 1104: Analog inputs
Input
I3P
U3P
IEC 61850 IEC 60617
identification identification
DPSRDIR I1->
Description
Three-phase currents
Three-phase voltages
1MRS759142 C
ANSI/IEEE C37.2
device number
67P-TC
REX640
Technical Manual