P74x/EN ST/N
1, P742, P743
(ST) 4-
Menu Text Default Setting
Setting Range
Step Size
Min. Max.
DATE AND TIME
DST Start Day Sunday
Monday, Tuesday, Wednesday, Thursday,
Friday, Saturday
Setting to specify the day of the week in which daylight saving time adjustment starts
DST Start Month March
January, February, March, April, May, June,
July, August, September, October,
November, December
Setting to specify the month in which daylight saving time adjustment starts
DST Start Mins 60min 0 1425 15min
Setting to specify the time of day in which daylight saving time adjustment starts. This is set
relative to 00:00 hrs on the selected day when time adjustment is to start.
DST End Last First, Second, Third, Fourth, Last
Setting to specify the week of the month in which daylight saving time adjustment ends.
DST End Day Sunday
Monday, Tuesday, Wednesday, Thursday,
Friday, Saturday
Setting to specify the day of the week in which daylight saving time adjustment ends
DST End Month October
January, February, March, April, May, June,
July, August, September, October,
November, December
Setting to specify the month in which daylight saving time adjustment ends
DST End Mins 60 0 1425 15min
Setting to specify the time of day in which daylight saving time adjustment ends. This is set
relative to 00:00 hrs on the selected day when time adjustment is to end.
RP1 Time Zone Local UTC or Local
Setting for the rear port 1 interface to specify if time synchronisation received will be local
or universal time coordinated
RP2 Time Zone Local UTC or Local
Setting for the rear port 2 interface to specify if time synchronisation received will be local
or universal time coordinated. This menu is available with the 2
nd
rear port.
Tunnel Time Zone Local UTC or Local
For P741 and P743 with Ethernet option only:
Setting to specify if time synchronisation received will be local or universal time co-ordinate
when ‘tunnelling’ courier protocol over Ethernet.
1.2 Protection settings
The protection settings include all the following items that become active once enabled in the
configuration column of the relay menu database:
− Protection element settings (P741):
• Differential Phase and Earth fault Protection (“Diff Busbar Prot” menu),
• Differential protection configuration (“Busbar option” menu).
− Protection element settings (P742 and P743):
• Busbar Trip (87BB) or Central Breaker Fail BackTrip Confirmation (50BF) (“BB Trip
Confirm” menu),
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