ABB RELION REX640, Техническое руководство, Страница: 1220 / 1960

Table 1162: SCEFRFLO Non group settings (Advanced)
Parameter Values (Range) Unit Step Default Description
EF algorithm Sel
1=Load compensa-
tion
2=Load modelling
1=Load compensa-
tion
Selection for PhE-
loop calculation al-
gorithm
EF algorithm Cur
Sel
1=Io based
2=I2 based
1=Io based Selection for earth-
fault current model
Load Com PP loops 0=Disabled
1=Enabled
1=Enabled Enable load com-
pensation for
PP/3P-loops
Enable simple mod-
el
0=Disabled
1=Enabled
0=Disabled Enable calc. with-
out impedance set-
tings for PP/3P-
loops
Time delay 0...3000 ms 10 100 Time delay to start
calculation in com-
pensated networks
Zero Ris Curr
change
0.005...1.000 xIn 0.001 0.010 Change in meas-
ured resistive com-
ponent current due
to fault
Distance estimate
Va
0.001...0.300 0.001 0.015 Allowed variation
of short circuit dis-
tance estimate
5.7.10 SCEFRFLO Monitored data
Table 1163: SCEFRFLO Monitored data
Name Type Values (Range) Unit Description
RF FLOAT32 0.00...3000.00 ohm Fault point resistance in
primary ohms
FAULT_LOOP 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
Fault impedance loop
FLT_DISTANCE FLOAT32 0.00...3000.00 pu Fault distance in units
selected by the user
FLT_DIST_Q INT32 0...511 Fault distance quality
RFLOOP FLOAT32 0.00...3000.00 ohm Fault loop resistance in
primary ohms
XFLOOP FLOAT32 0.00...3000.00 ohm Fault loop reactance in
primary ohms
XFPHASE FLOAT32 0.00...3000.00 ohm Positive sequence fault
reactance in primary
ohms
IFLT_PER_ILD FLOAT32 0.00...60000.00 Fault to load current ra-
tio
S_CALC FLOAT32 0.00...1.00 Estimated equivalent
load distance
XC0F_CALC FLOAT32 0.00...3000.00 ohm Estimated PhE capaci-
tive reactance of line
SCEFRFLO Enum
1=on
Status
Table continues on the next page
Protection related functions 1MRS759142 F
1220 REX640
Technical Manual