ABB RELION REX640 - Page 1750

Parameter Values (Range) Unit Step Default Description
2=Phasor
phasor measure-
ment
Tuning delay 0...3600 s 1 60 Zero-sequence volt-
age trigger delay to
start control proce-
dure
V Res variation 0.10...100.00 %Un 0.01 2.00 Req. change in Uo
that calc. of net.
param. can be exe-
cuted
Tuning mode
1=Coil movement
2=Resistor switch-
ing
1=Coil movement Method for obtain-
ing Uo variation
V Ref adaptive
mode
0=Disable
1=Enable
1=Enable Uref adaptive mode
V Ref adaptive de-
lay
0...1000 min 1 20 Uref adaptive delay
V Res EF level 0.00...100.00 %Un 0.01 15.00 Uo level for detec-
tion of earth fault
in the network
Default position 0...1000 A 1 50 Coil default posi-
tion
V Res minimum 0.00...20.00 %Un 0.01 0.10 Minimum level for
zero-sequence volt-
age to allow coil au-
tomatic tuning
V Res maximum 0.00...150.00 %Un 0.01 10.00 Maximum level for
zero-sequence volt-
age allowed during
automatic tuning
process
Temporary damp-
ing
0=False
1=True
0=False Resistor switching
on/off allowed dur-
ing the automatic
tuning procedure
Minimum current 0...100 A 1 0 Minimum current
of arc-suppression
coil (low operating
limit)
Maximum current 0...10000 A 1 10000 Maximum current
of arc-suppression
coil (high operating
limit)
Error position
1=Current
2=Previous
3=Default
2=Previous Coil position in
the case error oc-
curred during the
automatic tuning
process
Pass resonance
0=False
1=True
0=False Pass resonance en-
abled / disabled
Transient time EF 0...1000000 ms 1 5 Transient earth-
fault duration
threshold
EF mode
1=Blocked during
EF
2=Resonance
3=Tuning during EF
1=Blocked during
EF
Operation mode
during earth-fault
(alarming earth-
fault)
Resistor healthy St
0=Off
1=On
0=Off Resistor connec-
tion status during
healthy state oper-
ation
Resistor repeats 0...100 1 0 Number of resistor
control sequence
repeats
Table continues on the next page
Control functions 1MRS759142 F
1750 REX640
Technical Manual