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Section 17
Station communication
IEC/UCA 61850-9-2LE
IEC10000074 V2 EN-US
Figure 217: Setting example with external synchronization
Settings on the local HMI under Main menu/Configuration/Time/Synchronization/
TIMESYNCHGEN:1/IEC61850-9-2:
HwSyncSrc : set to PPS/IRIG-B depending on available outputs on the clock.
•
SyncLostMode : set to Block to block protection functions if time synchronization is lost.
•
SyncAccLevel : can be set to 4μs since this corresponds to a maximum phase angle error of
•
0.072 degrees at 50Hz.
fineSyncSource : should be set to IRIG-B if available from the clock. If PPS is used for
•
HWSyncSrc , "full-time" has to be acquired from another source. If station clock is on the
local area network (LAN) and has an sntp-server, this is one option.
Two status monitoring signals can be:
•
SYNCH signal on the MUx function block indicates that protection functions are blocked
due to loss of internal time synchronization to the IED (that is loss of the hardware
synchSrc ).
•
MUSYNCH signal on the MUx function block monitors the synchronization flag
in the datastream and IED hardware time synchronization.
No time synchronization
406
PPS / IRIG-B
IED
data
PPS
MU
This example is not valid when GPS time is used for differential protection,
when PTP is enabled or when the PMU report is used.
STATION
CLOCK
IEC10000074=2=en=Original.vsd
1MRK 505 370-UEN D
smpSynch
Busbar protection REB670
Application manual
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