[sync-einphasenanschluss-l-e-131102-kn, 1, en_GB]
Figure 2-24 Example of a single-phase phase-to-earth connection
Notes on the Information List
The most important information messages of the device are briefly explained below, except those already
detailed in the following lists or in the previous paragraphs.
>Sync. Start MC
(No. 2905)
Binary input which enables direct initiation of the synchronism check with setting parameters for manual
close. This initiation with setting parameters for manual close always has precedence if binary inputs
>Sync.
Start MC
(No 2905) and
>Sync. Start AR
(No 2906, see below), are activated at the same time.
>Sync. Start AR
(No. 2906)
Measuring request from an external automatic reclosure device. The parameters of synchronism check set for
automatic reclosure are valid here.
Sync. req.CNTRL
(No. 2936)
Measurement request of the control function; this request is evaluated on event-triggered basis and only
generated if the control issues a measurement request.
Sync. release
(No. 2951)
Release signal to an external automatic reclosure device.
Settings
Addresses which have an appended “A” can only be changed with DIGSI, under “Additional Settings”.
Addr.
Parameter Setting Options Default Setting Comments
3501 FCT Synchronism ON
OFF
ON:w/o CloseCmd
ON Synchronism and Voltage Check
function
3502 Dead Volt. Thr. 1 .. 100 V 5 V Voltage threshold dead line / bus
3503 Live Volt. Thr. 20 .. 125 V 90 V Voltage threshold live line / bus
3504 Umax 20 .. 140 V 110 V Maximum permissible voltage
2.4.3
Functions
2.4 Synchronism and voltage check (optional)
94 SIPROTEC 4, 7VK61, Manual
C53000-G1176-C159-5, Edition 05.2018
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