Section 21
Basic IED functions
21.1
Time synchronization
IP1750-1 v1
21.1.1
Functionality
M11344-3 v11
The time synchronization function is used to select a common source of absolute time for the
synchronization of the IED when it is a part of a protection system. This makes it possible to
compare events and disturbance data between all IEDs within a station automation system and in
between sub-stations.
Micro SCADA OPC server should not be used as a time synchronization source.
21.1.2
Settings
IP9657-1 v2
SEMOD55141-5 v5
There are two groups of parameter settings related to time:
•
System time
•
Synchronization
The System time group relates to setting the on/off and start/end of the Daylight Saving Time
(DST) for the local time zone in relation to Coordinated Universal Time (UTC). The Synchronization
group relates to selecting the coarse and fine synchronization sources. As well as defining the
synchronization master and accuracy levels specifically for IEC61850-9-2.
All the settings and parameters related to time are available via Local HMI under Main menu/
Configuration/Time/System time and via PCM600 under IED Configuration/Time.
1MRK 502 066-UUS B
Section 21
Basic IED functions
1237
Technical manual
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