Table 54. Tap changer control with voltage regulator (OLATCC) main settings
Parameter
Function
Value (Range)
Step
Auto parallel mode
OLATCC
2 = Auto master
3 = Auto follower
5 = NRP
7 = MCC
-
Band center voltage
OLATCC
0.000...2.000 × U
n
0.001
Line drop V Ris
OLATCC
0.0...25.0%
0.1
Line drop V React
OLATCC
0.0...25.0%
0.1
Stability factor
OLATCC
0.0...70.0%
0.1
Load phase angle
OLATCC
-89...89°
1
Control delay time 1
OLATCC
1000...300000 ms
100
Control delay time 2
OLATCC
1000...300000 ms
100
Operation mode
OLATCC
1 = Manual
2 = Auto single
3 = Auto parallel
4 = Input control
5 = Command
-
Custom Man blocking
OLATCC
1 = Custom disabled
2 = OC
3 = UV
4 = OC, UV
5 = EXT
6 = OC, EXT
7 = UV, EXT
8 = OC, UV, EXT
-
Delay characteristics
OLATCC
0 = Inverse time
1 = Definite time
-
Band width voltage
OLATCC
1.20...18.00 %U
n
0.01
Load current limit
OLATCC
0.10...5.00 × I
n
0.01
Block lower voltage
OLATCC
0.10...1.20 × U
n
0.01
Runback raise V
OLATCC
0.80...2.40 × U
n
0.01
Cir current limit
OLATCC
0.10...5.00 × I
n
0.01
LDC limit
OLATCC
0.00...2.00 × U
n
0.01
Lower block tap
OLATCC
-36...36
-
Raise block tap
OLATCC
-36...36
-
LCT pulse time
OLATCC
500...10000 ms
100
LDC enable
OLATCC
0 = False
1 = True
-
Follower delay time
OLATTC
6...20 s
-
Voltage Protection and Control
1MRS757058 K
REU615
Product version: 5.0 FP1
36
ABB
Summary of Contents for Relion 615 series
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