5.
Select
Main menu/Configuration/Time/Synchronization/Synch source
and
press
.
6.
Select the time synchronization source with
or
.
7.
Press
to confirm the selection.
Setting daylight saving time
The protection relay can be set to determine the correct date for the DST shift every
year. The UTC time is used to set the DST.
1.
Set the
DST on day (weekday)
and
DST off day (weekday)
parameters to define
on which week day the time shift occurs.
2.
Set the
DST on date (day)
,
DST on date (month)
and
DST off date (month)
parameters to define on which month and week the time shift occurs.
The DST on/off date must precede the selected DST on/off day and be within the
same week as the DST shift.
Table 29:
Possible date values for DST change on Sunday
Day of the DST shift
DST on/off date (day)
First Sunday of the month
1
Second Sunday of the month
8
Third Sunday of the month
15
Fourth Sunday of the month
22
Last Sunday, if the month has 30 days
24
Last Sunday, if the month has 31 days
25
For example, if the DST is observed from the last Sunday in March to the last
Sunday in October and the time shift occurs at 01:00 UTC, the setting parameters
are the following.
DST on time (hours):
2 h
DST on time (minutes):
0 min
DST on date (day):
25
DST on date (month):
March
DST on day (weekday):
Sunday
DST off time (hours):
1 h
DST off time (minutes):
0 min
DST off date (day):
25
DST off date (month):
October
DST off day (weekday):
Sunday
Set the
DST on day (weekday)
and
DST off day (weekday)
to
"reserved" to determine the exact date and time for the DST shift.
1MRS758754 B
Section 8
Commissioning
REC615 and RER615
125
Operation Manual
