ABB RELION REX640 Technical Manual page 1460

Measurement functions
8.1.7.6 VMMXU Settings
Table 1389: VMMXU Non group settings (Basic)
Parameter Values (Range)
Operation
1=on
5=off
Num of phases
1=1 out of 3
2=2 out of 3
3=3 out of 3
V high high limit 0.00...4.00
V high limit 0.00...4.00
V low limit 0.00...4.00
V low low limit 0.00...4.00
V deadband 100...100000
Table 1390: VMMXU Non group settings (Advanced)
Parameter Values (Range)
Measurement
1=RMS
mode
2=DFT
On delay time 0...1800000
Off delay time 0...1800000
8.1.7.7 VMMXU Monitored data
Table 1391: VMMXU Monitored data
Name Type
U12-kV:1 FLOAT32
U23-kV:1 FLOAT32
U31-kV:1 FLOAT32
UL1-kV:1 FLOAT32
UL2-kV:1 FLOAT32
Table continues on the next page
1460
Unit Step
xUn 0.01
xUn 0.01
xUn 0.01
xUn 0.01
1
Unit Step
ms 100
ms 100
Values (Range)
0.00...4.00
0.00...4.00
0.00...4.00
0.00...5.00
0.00...5.00
Default
1=on
1=1 out of 3
1.40
1.20
0.00
0.00
10000
Default
2=DFT
0
0
Unit Description
xUn Measured phase to
phase voltage ampli-
tude phase AB
xUn Measured phase to
phase voltage ampli-
tude phase BC
xUn Measured phase to
phase voltage ampli-
tude phase CA
xUn Measured phase to
earth voltage amplitude
phase A
xUn Measured phase to
earth voltage amplitude
phase B
1MRS759142 F
Description
Operation Off / On
Number of phases
required by limit
supervision
High alarm voltage
limit
High warning volt-
age limit
Low warning volt-
age limit
Low alarm voltage
limit
Deadband configu-
ration value for in-
tegral calculation.
(percentage of dif-
ference between
min and max as
0,001 % s)
Description
Selects used meas-
urement mode
Delay the activation
of the alarm and
warning outputs
Delay the deactiva-
tion of the alarm
and warning out-
puts
REX640
Technical Manual