ABB RELION REX640 - 9.10.9 OL5 ATCC Monitored data

Parameter Values (Range) Unit Step Default Description
Inst out of step Cor
0=False
1=True
0=False Enable instant out
of step correction
in M/F mode
Step of tap 0.60...9.00 % 0.01 1.50 The percentage
change in voltage
corresponding one
step of the tap
changer
Tap nominal -36...36 1 8 The nominal posi-
tion of the tap
changer resulting
the default trans-
formation ratio of
the transformer (as
if there was no tap
changer)
Impedance voltage 0.00...100.00 % 0.01 5.00 The percentage im-
pedance voltage at
rated current refer-
red to MV side
9.10.9 OL5ATCC Monitored data
Table 1586: OL5ATCC Monitored data
Name Type Values (Range) Unit Description
U_MEAS FLOAT32 0.00...5.00 xUn Phase-to-phase volt-
age, average filtered
ANGL_UA_IA FLOAT32 -180...180 deg Measured angle value
between phase A volt-
age and current
TIMER_STS Enum
0=Timer off
1=Lower timer1 on
2=Raise timer1 on
3=Lower timer2 on
4=Raise timer2 on
5=Fast lower T on
Timer T1, T2 or fast low-
er timer active
OPR_MODE_STS Enum
0=Not in use
1=Manual
2=Auto single
3=Parallel manual
4=Auto master
5=Auto follower
6=MCC
7=NRP
The acting operation
mode of the function
block
U_CTL FLOAT32 0.000...3.000 xUn Control voltage, Up, tar-
get voltage level
UD_CTL FLOAT32 -2.000...2.000 xUn Voltage difference be-
tween Measured volt-
age - Control Voltage:
Um - Up
I_CIR FLOAT32 -10.00...10.00 xIn Calculated circulating
current - calculated in
operation modes NRP
and MCC
LDC FLOAT32 -2.00...2.00 xUn Calculated line drop
compensation
Table continues on the next page
Control functions 1MRS759142 F
1726 REX640
Technical Manual