Sel SEL-787 - Table 4.36 Setting Group Selection; Table 4.37 Time and Date Management Settings

4.83
Date Code 20150130 Instruction Manual SEL-787 Relay
Protection and Logic Functions
Global Settings (SET G Command)
EXAMPLE 4.5 Setting MPTXxx With a Specified Location of Analog
Quantity
MPTX01 := THE LOAD CURRENT IS %.2f AMPERES
MPAQ01 value = 157.44
Formatted message out when triggered: THE LOAD CURRENT IS
157.44 AMPERES
MPTX01 := THE LOAD CURRENT IS %d AMPERES
MPAQ01 value = 157.44
Formatted message out when triggered: THE LOAD CURRENT IS 157
AMPERES
Group Selection
The TGR setting defines the amount of time that the SS1, SS2, SS3, and SS4
SEL
OGIC control equation logic results must remain stable before the relay
enables a new setting group. Typically, a one-second delay is sufficient.
SS1, SS2, SS3, and SS4 are SEL
OGIC control equations that help define when
setting Group 1, 2, 3, and 4 are active. With the settings shown above, SS1 is
set equal to logical 1, thus setting Group 1 always is active.
Synchrophasor
Measurement
The SEL-787 relay provides Phasor Measurement Control Unit (PMCU)
capabilities when connected to an IRIG-B time source. See Appendix H:
Synchrophasors for description and Table H.1 for the settings.
Time and Date
Management Settings
The SEL-787 supports several methods of updating the relay time and date.
For IRIG-B and Phasor Measurement Unit (PMU) synchrophasor
applications, refer to Appendix H: Synchrophasors for the description and
Table H.1 for the settings. For SNTP applications, refer to Simple Network
Time Protocol (SNTP) on page 7.12. For time update from a DNP Master, see
Time Synchronization on page D.9.
Table 4.37 shows the time and date management settings that are available in
the Global settings.
Table 4.36 Setting Group Selection
Setting Prompt Setting Range
Setting Name :=
Fac tory Default
GRP CHG DELAY 0–400 sec TGR := 3
SELECT GROUP1 SEL
OGIC SS1 := 1
SELECT GROUP2 SEL
OGIC SS2 := 0
SELECT GROUP3 SEL
OGIC SS3 := 0
SELECT GROUP4 SEL
OGIC SS4 := 0
Table 4.37 Time and Date Management Settings (Sheet 1 of 2)
Setting Description Setting Range
Setting Name :=
Fac tory Default
IRIG-B Control Bits Definition NONE, C37.118 IRIGC := NONE
Offset From UTC -24.00 to 24.00 hours,
rounds up to nearest 0.25
hour
UTC_OFF := 0.00
Month To begin DST OFF, 1–12 DST_BEGM :=
OFF