Table 185. Synchronism and energizing check (SECRSYN) main settings
Parameter Function Value (Range) Step
Live dead mode SECRSYN -1 = Off
1 = Both Dead
2 = Live L, Dead B
3 = Dead L, Live B
4 = Dead Bus, L Any
5 = Dead L, Bus Any
6 = One Live, Dead
7 = Not Both Live
-
Difference voltage SECRSYN 0.01...0.50 × U
n
0.01
Difference frequency SECRSYN 0.0002...0.1000 × f
n
0.0001
Difference angle SECRSYN 5...90° 1
Synchro check mode SECRSYN 1 = Off
2 = Synchronous
3 = Asynchronous
-
Dead line value SECRSYN 0.1...0.8 × U
n
0.1
Live line value SECRSYN 0.2...1.0 × U
n
0.1
Max energizing V SECRSYN 0.50...1.15 × U
n
0.01
Control mode SECRSYN 1 = Continuous
2 = Command
-
Close pulse SECRSYN 200...60000 ms 10
Phase shift SECRSYN -180...180° 1
Minimum Syn time SECRSYN 0...60000 ms 10
Maximum Syn time SECRSYN 100...6000000 ms 10
Energizing time SECRSYN 100...60000 ms 10
Closing time of CB SECRSYN 40...250 ms 10
Table 186. Tap changer control with voltage regulator (OL5ATCC)
Characteristic
Value
Operation accuracy
1)
Depending on the frequency of the measured current: f
n
±2 Hz
Differential voltage U
d
= ±0.5% of the measured value or ±0.005 × U
n
(in
measured voltages <2.0 × U
n
)
Operation value = ±1.5% of the U
d
for Us = 1.0 × U
n
Operate time accuracy in definite time mode
2)
+4.0%/-0% of the set value
Operate time accuracy in inverse time mode
2)
+8.5%/-0% of the set value
(at theoretical B in range of 1.1…5.0)
Also note fixed minimum operate time (IDMT) 1 s
Reset ratio for control operation
Reset ratio for analog based blockings (except run back raise voltage
blocking)
Typically 0.80 (1.20)
Typically 0.96 (1.04)
1) Default setting values used
2) Voltage before deviation = set
Band center voltage
1MRS759144 A
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