GE Multilin
C60 Breaker Protection System
5-37
5 SETTINGS
5.2 PRODUCT SETUP
5
5.2.6 REAL TIME CLOCK
PATH: SETTINGS
Ö
PRODUCT SETUP
ÖØ
REAL TIME CLOCK
The date and time can be synchronized a known time base and to other relays using an IRIG-B signal. It has the same
accuracy as an electronic watch, approximately ±1 minute per month. If an IRIG-B signal is connected to the relay, only the
current year needs to be entered. See the
COMMANDS
ÖØ
SET DATE AND TIME
menu to manually set the relay clock.
The
REAL TIME CLOCK EVENTS
setting allows changes to the date and/or time to be captured in the event record.
The
LOCAL TIME OFFSET FROM UTC
setting is used to specify the local time zone offset from Universal Coordinated Time
(Greenwich Mean Time) in hours. This setting has two uses. When the C60 is time synchronized with IRIG-B, or has no
permanent time synchronization, the offset is used to calculate UTC time for IEC 61850 features. When the C60 is time
synchronized with SNTP, the offset is used to determine the local time for the C60 clock, since SNTP provides UTC time.
The daylight savings time (DST) settings can be used to allow the C60 clock can follow the DST rules of the local time
zone. Note that when IRIG-B time synchronization is active, the DST settings are ignored. The DST settings are used when
the C60 is synchronized with SNTP, or when neither SNTP nor IRIG-B is used.
Only timestamps in the event recorder and communications protocols are affected by the daylight savings time set-
tings. The reported real-time clock value does not change.
REAL TIME
CLOCK
IRIG-B SIGNAL TYPE:
None
Range: None, DC Shift, Amplitude Modulated
MESSAGE
REAL TIME CLOCK
EVENTS: Disabled
Range: Disabled, Enabled
MESSAGE
LOCAL TIME OFFSET
FROM UTC:
0.0 hrs
Range: –24.0 to 24.0 hrs in steps of 0.5
MESSAGE
DAYLIGHT SAVINGS
TIME: Disabled
Range: Disabled, Enabled
MESSAGE
DST START MONTH:
April
Range: January to December (all months)
MESSAGE
DST START DAY:
Sunday
Range: Sunday to Saturday (all days of the week)
MESSAGE
DST START DAY
INSTANCE: First
Range: First, Second, Third, Fourth, Last
MESSAGE
DST START HOUR:
2:00
Range: 0:00 to 23:00
MESSAGE
DST STOP MONTH:
April
Range: January to December (all months)
MESSAGE
DST STOP DAY:
Sunday
Range: Sunday to Saturday (all days of the week)
MESSAGE
DST STOP DAY
INSTANCE: First
Range: First, Second, Third, Fourth, Last
MESSAGE
DST STOP HOUR:
2:00
Range: 0:00 to 23:00
NOTE
Summary of Contents for C60
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Page 11: ...GE Multilin C60 Breaker Protection System xi TABLE OF CONTENTS INDEX ...
Page 12: ...xii C60 Breaker Protection System GE Multilin TABLE OF CONTENTS ...
Page 32: ...1 20 C60 Breaker Protection System GE Multilin 1 5 USING THE RELAY 1 GETTING STARTED 1 ...
Page 50: ...2 18 C60 Breaker Protection System GE Multilin 2 2 SPECIFICATIONS 2 PRODUCT DESCRIPTION 2 ...
Page 128: ...4 30 C60 Breaker Protection System GE Multilin 4 3 FACEPLATE INTERFACE 4 HUMAN INTERFACES 4 ...
Page 394: ...9 4 C60 Breaker Protection System GE Multilin 9 1 FAULT LOCATOR 9 THEORY OF OPERATION 9 ...
Page 516: ...D 10 C60 Breaker Protection System GE Multilin D 1 OVERVIEW APPENDIXD D ...
Page 528: ...E 12 C60 Breaker Protection System GE Multilin E 2 DNP POINT LISTS APPENDIXE E ...