[anbind-awe-an-synchro-fkt-061115, 1, en_US]
Figure 2-114 Connection of the automatic reclosing function to the synchrocheck function
With External Control
As another option, the synchrocheck function can be activated via external measurement requests via binary
inputs. If the start is effected via the pulse start signal
>25 Start
, the corresponding stop signal
>25 Stop
must always be generated, too. Having completed the check, the synchrocheck function issues the release
message (see the following figure). Measurement is terminated as soon as the measurement request is reset
via the binary input. In this case, there is no need to configure a control device to be synchronized.
[zusam-wirk-synchro-fkt-mit-ext-anst-061115, 1, en_US]
Figure 2-115 Interaction of synchrocheck function and external control
Setting Notes
General
The synchronization function can only operate if 161 25 Function 1 with SYNCHROCHECK was enabled at
address 161 during configuration of the functional scope (see Section2.1.1.2 Setting Notes). If this function is
not required, then Disabled is set.
While setting the power system data 1 (see Section 2.1.3.2 Setting Notes) the device was already provided
with data relevant for the measured values and the operating principle of the synchronization function. This
concerns the following parameters:
202 Vnom PRIMARY primary nominal voltage of the voltage transformers V
1
(phase-to-phase) in kV;
203 Vnom SECONDARY secondary nominal voltage of the voltage transformers V
1
(phase-to-phase) in V;
213 VT Connect. 3ph specifies how the voltage transformers are connected.
The synchronization function works with the settings Van, Vbn, Vcn or Vab, Vbc, VGnd or Vab, Vbc.
Use the V
x
as reference voltage V
2
. In the 6 PT mode, use the voltage from the terminal VX/V2A as reference
voltage V
2
.
2.20.6
Functions
2.20 Synchrocheck
342 SIPROTEC Compact, 7SC80, Manual
E50417-G1140-C486-A8, Edition 07.2017
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