Section 19 Basic IED functions
19.1 Time synchronization TIMESYNCHGEN
IP1750-1 v2
19.1.1 Functionality
M11344-3 v10
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. A common source
shall be used for IED and merging unit when IEC/UCA 61850-9-2LE process bus
communication is used.
Micro SCADA OPC server should not be used as a time
synchronization source.
19.1.2 Settings
IP9657-1 v2
SEMOD55141-5 v6
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.
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 506 382-UEN A Section 19
Basic IED functions
Line distance protection REL650 2.2 IEC 795
Technical manual
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