Monitored Data - ABB RELION REX640 Technical Manual

Section 5
Protection related functions
5.14.9
5.15
5.15.1
5.15.2
5.15.3
1188

Monitored data

Table 1111: DPSRDIR Monitored data
Name Type
ANGLE_RCA FLOAT32
DPSRDIR Enum
Neutral power directional element DNZSRDIR
Identification
Function description
Neutral power directional element
Function block
GUID-53F1ADE8-C944-495B-A8CC-A7033685FEDE V1 EN
Figure 642: Function block
Functionality
Neutral power directional element function DNZSRDIR is used to detect negative or
residual power direction. The output of the function is used for blocking or releasing
other functions in protection scheme.
In negative-sequence voltage selection, if the angle difference between negative-
sequence voltage and negative-sequence current is in a predefined direction (either in
forward or reverse direction), DNZSRDIR gives a release signal after a definite time
delay.
In residual voltage selection, if the angle difference between residual voltage and
residual current is in a predefined direction (either in forward or reverse direction),
DNZSRDIR gives release signal after a definite time delay.
Values (Range) Unit
-180.00...180.00 deg
1=on
2=blocked
3=test
4=test/blocked
5=off
IEC 61850 IEC 60617
identification identification
DNZSRDIR I2->, Io->
1MRS759142 C
Description
Angle between operating
angle and characteristic
angle
Status
ANSI/IEEE C37.2
device number
67N-TC
REX640
Technical Manual