ABB RELION 620 Series Technical Manual page 527

1MAC504801-IB E
4.7.3.8
Table 380: 40 Group settings
Parameter Values (Range)
Diameter 1...6000
Offset -1000...1000
Displacement -1000...1000
Trip delay time 60...200000
Table 381: 40 Non group settings
Parameter Values (Range)
Operation 1=enable
5=disable
Reset delay time 0...60000
External Los Det Ena 0=Disable
1=Enable
Voltage reversal 0=No
1=Yes
Impedance Meas mode 1=1Phase-to-earth
2=1Phase-to-
phase
3=3Phase-to-earth
4=3Phase-to-
phase
5=Pos sequence
Phase Sel for Z Clc 1=A or AB
2=B or BC
3=C or CA
620 series ANSI
Technical Manual
Name Type
BLOCK BOOLEAN
BLK_TRIP BOOLEAN
BLK_PICKUP BOOLEAN
FR_TIMER BOOLEAN
Table 379: 40 Output signals
Name Type
TRIP BOOLEAN
PICKUP BOOLEAN
Settings
Unit Step
%Zn 1
%Zn 1
%Zn 1
ms 10
Unit Step
ms 10
Default Description
0=False Block signal for activating the blocking mode
FALSE Block signal for operate output
FALSE Block signal for start
FALSE Freeze signal for timer
Description
Trip
Pickup
Default Description
200 Diameter of the Mho diagram
-10 Offset of top of the impedance circle from the
R-axis
0 Displacement of impedance circle centre from
the X-axis
5000 Trip delay time
Default Description
5=disable Operation Disable / Enable
3000 Reset delay time
1=Enable Enable external excitation loss detection
0=No Rotate voltage signals by 180 degrees
5=Pos sequence Select voltage and currents for impedance
calculation
1=A or AB Voltage phase selection
Section 4
Protection functions
521