On-Load Tap Changer Control With Voltage Regulator (Olatcc) Main Settings - ABB RET620 Product Manual

Transformer Protection and Control
RET620
Product version: 2.0
Table 71. On-load tap changer control with voltage regulator (OLATCC) main settings
Parameter
Band center voltage
Control delay time 1
Control delay time 2
Line drop V Ris
Line drop V React
Load phase angle
Stability factor
Auto parallel mode
Operation mode
Delay characteristics
LCT pulse time
Band width voltage
Custom Man blocking
Load current limit
Block lower voltage
Runback raise volt
Cir current limit
Lower block tap
Raise block tap
LDC limit
LDC enable
Follower delay time
ABB
Function
OLATCC
OLATCC
OLATCC
OLATCC
OLATCC
OLATCC
OLATCC
OLATCC
OLATCC
OLATCC
OLATCC
OLATCC
OLATCC
OLATCC
OLATCC
OLATCC
OLATCC
OLATCC
OLATCC
OLATCC
OLATCC
OLATTC
Value (Range)
0.000...2.000 x Un
1000...300000 ms
1000...300000 ms
0.0...25.0 %
0.0...25.0 %
-89...89 deg
0.0...70.0 %
Auto master
Auto follower
NRP
MCC
Manual
Auto single
Auto parallel
Input control
Inverse time
Definite time
500...10000 ms
1.20...18.00 % Un
1=Custom disabled
2=OC
3=UV
4=OC, UV
5=EXT
6=OC, EXT
7=UV, EXT
8=OC, UV, EXT
0.10...5.00 x In
0.10...1.20 x Un
0.80...2.40 x In
0.10...5.00 x In
-36...36
-36...36
0.00...2.00 x Un
False
True
6...20 s
1MRS757846 A
Step
0.001
100
100
0.1
0.1
1
0.1
-
-
-
100
0.01
-
0.01
0.01
0.01
0.01
-
-
0.01
-
-
43