Monitored Data - ABB RELION REX640 Technical Manual

Section 5
Protection related functions
Table 1055: SCEFRFLO Non group settings (Advanced)
Parameter
EF algorithm Sel
EF algorithm Cur Sel
Load Com PP loops
Enable simple model
Time delay
Zero Ris Curr change
Distance estimate Va
5.7.10
1122
Values (Range) Unit
1=Load
compensation
2=Load modelling
1=Io based
2=I2 based
0=Disabled
1=Enabled
0=Disabled
1=Enabled
0...3000 ms
0.005...1.000 xIn
0.001...0.300

Monitored data

Table 1056: SCEFRFLO Monitored data
Name
RF
FAULT_LOOP
FLT_DISTANCE
FLT_DIST_Q
RFLOOP
XFLOOP
XFPHASE
IFLT_PER_ILD
S_CALC
XC0F_CALC
Table continues on next page
Step Default
1=Load
compensation
1=Io based
1=Enabled
0=Disabled
10 100
0.001 0.010
0.001 0.015
Type Values (Range)
FLOAT32 0.0...1000000.0
Enum 1=AG Fault
2=BG Fault
3=CG Fault
4=AB Fault
5=BC Fault
6=CA Fault
7=ABC Fault
-5=No fault
FLOAT32 0.00...3000.00
INT32 0...511
FLOAT32 0.0...1000000.0
FLOAT32 0.0...1000000.0
FLOAT32 0.0...1000000.0
FLOAT32 0.00...60000.00
FLOAT32 0.00...1.00
FLOAT32 0.0...1000000.0
1MRS759142 C
Description
Selection for PhE-loop calculation
algorithm
Selection for earth-fault current model
Enable load compensation for PP/3P-
loops
Enable calc. without impedance settings
for PP/3P-loops
Time delay to start calculation in
compensated networks
Change in measured resistive component
current due to fault
Allowed variation of short circuit distance
estimate
Unit Description
ohm Fault point resistance in
primary ohms
Fault impedance loop
pu Fault distance in units
selected by the user
Fault distance quality
ohm Fault loop resistance in
primary ohms
ohm Fault loop reactance in
primary ohms
ohm Positive sequence fault
reactance in primary
ohms
Fault to load current ratio
Estimated equivalent
load distance
ohm Estimated PhE
capacitive reactance of
line
Technical Manual
REX640