MiCOM P747
12
TIME SYNCHRONISATION
In modern protection schemes it is necessary to synchronise the IED's real time clock so that events from
different devices can be time stamped and placed in chronological order. This is achieved in various ways
depending on the chosen options and communication protocols.
●
Using the IRIG-B input (if fitted)
●
Using the SNTP time protocol (for Ethernet IEC 61850 versions + DNP3 OE)
●
By using the time synchronisation functionality inherent in the data protocols
P747-TM-EN-1
P747-TM-EN-1.1
Chapter 7 - SCADA Communications
231