Settings - ABB RELION REX640 Technical Manual

Section 4
Protection functions
4.7.3.8
Table 872: UEXPDIS Group settings (Basic)
Parameter
Diameter
Offset
Displacement
Operate delay time
Table 873: UEXPDIS Non group settings (Basic)
Parameter
Operation
External Los Det Ena
Voltage reversal
Impedance Meas mode
Phase Sel for Z Clc
Table 874: UEXPDIS Non group settings (Advanced)
Parameter
Reset delay time
4.7.3.9
940

Settings

Values (Range) Unit
1...6000 %Zn
-1000...1000 %Zn
-1000...1000 %Zn
60...200000 ms
Values (Range) Unit
1=on
5=off
0=Disable
1=Enable
0=No
1=Yes
1=1Phase-to-earth
2=1Phase-to-
phase
3=3Phase-to-earth
4=3Phase-to-
phase
5=Pos sequence
1=A or AB
2=B or BC
3=C or CA
Values (Range) Unit
0...60000 ms
Monitored data
Table 875: UEXPDIS Monitored data
Name
START_DUR
Z_AMPL_A
Z_ANGLE_A
Z_AMPL_B
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Step Default
1 200
1 -10
1 0
10 5000
Step Default
1=on
1=Enable
0=No
5=Pos sequence
1=A or AB
Step Default
10 3000
Type Values (Range)
FLOAT32 0.00...100.00
FLOAT32 0.00...200.00
FLOAT32 -180.00...180.00
FLOAT32 0.00...200.00
1MRS759142 C
Description
Diameter of the Mho diagram
Offset of top of the impedance circle from
the R-axis
Displacement of impedance circle centre
from the X-axis
Operate delay time
Description
Operation Off / On
Enable external excitation loss detection
Rotate voltage signals by 180 degrees
Select voltage and currents for
impedance calculation
Voltage phase selection
Description
Reset delay time
Unit Description
% Ratio of start time /
operate time (in %)
xZn Impedance amplitude
phase A
deg Impedance angle phase
A
xZn Impedance amplitude
phase B
Technical Manual
REX640