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Setting example
9-2
REC
PTP
PTP
Station bus
GPS
SAM600-TS
SAM600-CT
SAM600-VT
PTP
PTP
9-2
PTP
REL
MU
GTM
PPS
IEC16000167-1-en.vsdx
9-2
9-2
9-2
Process bus
IEC16000167 V1 EN-US
Figure 430:
Example system
describes an example system. The REC and REL are both using the 9-2
stream from the SAM600, and gets its synch from the GPS. Moreover, the REL
and REC both acts as a boundary clock to provide synch to the SAM600. The REL
contains a GTM card, which has a PPS output that is used to synchronize merging
units that are not PTP compliant. As a side effect, the GTM contains a GPS
receiver and the REL acts as a backup of the GPS on the station bus.
On all access points, the
PTP
parameter is “
ON
”.
On the REL, the parameter
FineSyncSource
(under
Configuration/Time/
Synchronization/TIMESYNCHGEN:1/General
) is set to “
GPS
” if there is a
GPS antenna attached.
If the GTM is used as a PPS output only, the
FineSynchSource
is not set.
24.13.2.3
Process bus IEC/UCA 61850-9-2LE synchronization
GUID-6E384BDB-5598-4108-99B4-0B4A4E1828B2 v4
When process bus communication (IEC/UCA 61850-9-2LE protocol) is used, it is
essential that the merging units are synchronized with the hardware time of the IED
(see Technical manual, section
Design of the time system (clock synchronization
) ).
To achieve this, PTP, PPS or IRIG-B can be used depending of the facilities of the
merging unit.
If the merging unit supports PTP, use PTP. If PTP is used in the IED and the
merging unit is not PTP capable, then synchronize the merging unit from the IED
Section 24
1MRK 506 369-UEN B
Basic IED functions
874
Line distance protection REL670 2.2 IEC
Application manual
Содержание REL670 2.2 IEC
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