Technical Data - ABB Relion Technical Manual

Section 17
Basic IED functions
17.2.9
17.3
17.3.1
676
The IRIG-B input also takes care of IEEE1344 messages that are sent by IRIG-B clocks,
as IRIG-B previously did not have any year information. IEEE1344 is compatible with
IRIG-B and contains year information and information of the time-zone.
It is recommended to use IEEE 1344 for supplying time information to the IRIG-B
module. In this case, send also the local time in the messages.
Synchronization via DNP
The DNP3 communication can be the source for the coarse time synchronization, while
the fine time synchronization needs a source with higher accuracy. See the
communication protocol manual for a detailed description of the DNP3 protocol.
Synchronization via IEC60870-5-103
The IEC60870-5-103 communication can be the source for the coarse time
synchronization, while the fine tuning of the time synchronization needs a source with
higher accuracy. See the communication protocol manual for a detailed description of the
IEC60870-5-103 protocol.

Technical data

Table 498: Time synchronization, time tagging
Function
Time tagging resolution, events and sampled measurement values
Time tagging error with synchronization once/min (minute pulse
synchronization), events and sampled measurement values
Time tagging error with SNTP synchronization, sampled measurement
values
Parameter setting group handling
Functionality
Use the four different groups of settings to optimize the IED operation for different power
system conditions. Creating and switching between fine-tuned setting sets, either from the
local HMI or configurable binary inputs, results in a highly adaptable IED that can be
applied to a variety of power system scenarios.
1MRK 502 048-UUS A
Value
1 ms
± 1.0 ms typically
± 1.0 ms typically
Technical manual