Signals - ABB RELION REX640 Technical Manual

Section 8
Measurement functions
8.1.8.5
8.1.8.6
Table 1248: RESVMMXU Non group settings (Basic)
Parameter
Operation
V Hi high limit res
V high limit res
V deadband res
1314
See the preprocessing function blocks in this document for the
possible signal sources.
There are a few special conditions which must be noted with the configuration.
Table 1245: Special conditions
Condition
URES calculated
Improper analog channel configuration causes a validation error if the analog
channels are not completely configured or they do not match with certain settings. For
troubleshooting, check the contents of this chapter and also the preprocessing blocks
in this document. The configuration can be written to the protection relay once the
mismatch is corrected.

Signals

Table 1246: RESVMMXU Input signals
Name
URES
BLOCK
Table 1247: RESVMMXU Output signals
Name
HIGH_ALARM
HIGH_WARN
U_INST_RES
U_DMD_RES
Settings
Values (Range) Unit
1=on
5=off
0.00...4.00 xUn
0.00...4.00 xUn
100...100000
Description
The function requires that all three voltage
channels are connected to calculate residual
voltage. Setting
that particular UTVTR.
Type Default Description
SIGNAL - Residual voltage
BOOLEAN 0=False Block signal for all binary outputs
Type Description
BOOLEAN High alarm
BOOLEAN High warning
FLOAT32 Residual voltage instantaneous value amplitude in
kV
FLOAT32 Demand value of residual voltage
Step Default
1=on
1 0.20
1 0.05
1 10000
1MRS759142 C
VT connection must be "Wye" in
Description
Operation Off / On
High alarm voltage limit
High warning voltage limit
Deadband configuration value for integral
calculation. (percentage of difference
between min and max as 0,001 % s)
Technical Manual
REX640