ABB RELION REC615 Operation Manual page 133

1MRS758754 B
REC615 and RER615
Operation Manual
5. Select Main menu/Configuration/Time/Synchronization/Synch source and
press .
6.
Select the time synchronization source with
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
First Sunday of the month
Second Sunday of the month
Third Sunday of the month
Fourth Sunday of the month
Last Sunday, if the month has 30 days
Last Sunday, if the month has 31 days
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):
DST on time (minutes):
DST on date (day):
DST on date (month):
DST on day (weekday):
DST off time (hours):
DST off time (minutes):
DST off date (day):
DST off date (month):
DST off day (weekday):
Set the DST on day (weekday) and DST off day (weekday) to
"reserved" to determine the exact date and time for the DST shift.
or .
DST on/off date (day)
1
8
15
22
24
25
2 h
0 min
25
March
Sunday
1 h
0 min
25
October
Sunday
Section 8
Commissioning
125