“Power Profile” mode, the TLVs required by the IEEE C37.238-2011 Power Profile are
included in announce frames.
IEEE 1588 v2 time synchronization requires a communication card with
redundancy support (COM0031...COM0037).
When Modbus TCP or DNP3 over TCP/IP is used, SNTP or IRIG-B time
synchronization should be used for better synchronization accuracy.
With the legacy protocols, the synchronization message must be received
within four minutes from the previous synchronization. Otherwise bad
synchronization status is raised for the protection relay. With SNTP, it
is required that the SNTP server responds to a request within 12 ms,
otherwise the response is considered invalid.
The relay can use one of two SNTP servers, the primary or the secondary server. The
primary server is mainly in use, whereas the secondary server is used if the primary
server cannot be reached. While using the secondary SNTP server, the relay tries to
switch back to the primary server on every third SNTP request attempt. If both the
SNTP servers are offline, event time stamps have the time invalid status. The time is
requested from the SNTP server every 60 seconds. Supported SNTP versions are 3
and 4.
IRIG-B time synchronization requires the IRIG-B format B004/B005 according to the
200-04 IRIG-B standard. Older IRIG-B standards refer to these as B000/B001 with
IEEE-1344 extensions. The synchronization time can be either UTC time or local
time. As no reboot is necessary, the time synchronization starts immediately after
the IRIG-B sync source is selected and the IRIG-B signal source is connected.
IRIG-B time synchronization requires a COM card with an IRIG-B input.
3.5.1.3
Signals
3.5.1.4
Settings
Table 30: Non group settings
Parameter
Values (Range)
Unit
Step
Default
Description
Time format
1=24H:MM:SS:MS
2=12H:MM:SS:MS
1=24H:MM:SS:M S
Time format
Date format
1=DD.MM.YYYY
2=DD/MM/YYYY
3=DD-MM-YYYY
4=MM.DD.YYYY
5=MM/DD/YYYY
6=YYYY-MM-DD
7=YYYY-DD-MM
8=YYYY/DD/MM
1=DD.MM.YYYY
Date format
1MRS758755 C
Basic functions
REC615 & RER615
Technical Manual
71
Содержание Relion REC615
Страница 1: ... RELION PRODUCT FAMILY Grid Automation REC615 and RER615 Technical Manual ...
Страница 2: ......