ABB RELION REX640 - 7.4.7.2 RCFD Output signals; 7.4.8 RCFD Settings; 7.4.9 RCFD Monitored data

7.4.7.1 RCFD Input signals
Table 1334: RCFD Input signals
Name Type Default Description
I3P SIGNAL - Three-phase currents
IRES SIGNAL - Residual current
BLOCK BOOLEAN 0=False Block signal for acti-
vating the blocking
mode
7.4.7.2 RCFD Output signals
Table 1335: RCFD Output signals
Name Type Description
ALARM BOOLEAN Self clearing fault alarm
7.4.8 RCFD Settings
Table 1336: RCFD Non group settings (Basic)
Parameter Values (Range) Unit Step Default Description
Operation
1=on
5=off
1=on Operation Off / On
Phase start value 0.10...40.00 xIn 0.01 0.10 Fault current
threshold
Maximum fault cy-
cle
1...20 1 5 Fault detect thresh-
old parameter in
fundamental cycles
Minimum load cur-
rent
0.00...1.00 xIn 0.10 0.10 Absolute minimum
loading on the
feeder
Adaptive Str Val
Ena
0=False
1=True
0=False Adaptive threshold
enable
Residual start value 0.10...40.00 xIn 0.01 0.50 Fault residual cur-
rent threshold
Residual current
limit
0.00...1.00 xIn 0.10 0.10 Absolute maximum
residual current un-
der normal condi-
tion
Table 1337: RCFD Non group settings (Advanced)
Parameter Values (Range) Unit Step Default Description
Ena selfclear Det EF
0=False
1=True
0=False Self clearing fault
on EF
1MRS759142 F Condition monitoring functions
REX640
Technical Manual
1401