SYNC Function group 1
Depending on the device variants, parametrization possibilities are provided for up to eight different synchro-
nizing functions. The following describes the setting notes, parameter and annunciations for the first synchro-
nising function (SYNC Function group 1). The same applies to function groups 2 to 8.
Setting Notes
General
On setting the P.System Data 1 (see Section 2.1.4.1 Setting Notes) the device allocates a rated value of
significance for the synchronizing function:
270 Rated Frequency: The operating range of the synchronizing function refers to the nominal frequency
of the power system = (f
N
± 3 Hz).
The synchronizing function can only operate if during configuration of the functional scope (see Section
2.1.1.1 Setting Notes) under at least one of the addresses 161 SYNC function 1 to 168 SYNC function
8 was set as present. The operating mode can be preselected:
1ph Sync check corresponds to the classical synchronizing function with in each case single-phase connec-
tion of the voltages to be compared. Observe thereby that this selection involves a fixed allocation between
synchronizing function group and voltage channels. The allocation is shown in the following table
Table 2-3 Allocation between synchronizing function group and voltage channel for single-phase
synchro check
Synchronizing
Function Group
Voltage Channels Device Connections
1 Ua Ud Q1, Q2 Q7, Q8
2 Ub Ue Q3, Q4 Q9, Q10
3 Uc Uf Q5, Q6 Q11, Q12
A possible connection variant for a single-phase synchro check is shown in the following diagram with further
details.
2.2.2
2.2.2.1
Functions
2.2 Paralleling Functions
SIPROTEC 4, 7VE61 and 7VE63, Manual 61
C53000-G1176-C163-3, Edition 10.2017
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