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Schweitzer Engineering Laboratories SEL-749M - Report Settings (SET R Command); Table 4.48 SER Trigger Settings; Table 4.49 Event Report Settings

Schweitzer Engineering Laboratories SEL-749M
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4.44
SEL-749M Relay Instruction Manual Date Code 20080918
Protection and Logic Functions
Report Settings (SET R Command)
The target LEDs can be either trip-type (corresponding setting
T0nLEDL := Y) or status-type (setting T0nLEDL := N). The relay latches
trip-type LEDs on a trip condition. The status-type LEDs do not latch and
directly follow the state of the associated SEL
OGIC control equation setting.
The relay resets latched trip-type LEDs on the rising edge of a trip signal and
determines what LEDs should be lit for the new trip event. Additionally, you
can set RSTLED := Y to reset the latched LEDs automatically when the
breaker, or contactor, closes.
Report Settings (SET R Command)
The report settings use Relay Word bits for the SER and event report trigger as
shown in Table 4.48 and Table 4.49. See Appendix G: Relay Word Bits for
detail. Refer to Section 9: Analyzing Events for additional information about
SER and event reports.
SER Trigger Lists
Event Report Set
NOTE: Event report data stored in
the relay will be lost when you change
the LER setting, You must save the
data before changing the setting.
Event reports can be either 15 cycles or 64 cycles in length as determined by
the LER setting. For LER of 15, the prefault length, PRE, must be in the range
1–10. The relay can hold twenty three 15-cycle event reports or seven 64-
cycle event reports.
Ta b l e 4 .4 8 SE R
a
Trigger Settings
a
Use up to 24 Relay Word elements separated by spaces or commas for each setting.
Setting Prompt Setting Name := Factory Default
SER1 SER1 := IN101 IN102 IN401 IN402 IN403 TRIP RTDIN OUT101
OUT102 OUT103 OUT401 OUT402 OUT403 OUT404 ABSLO
TBSLO NOSLO THERMLO
SER2 SER2 := 49T LOSSTRIP JAMTRIP 46UBT 50P1T RTDT PTCTRIP
50G1T VART 37PT 27P1T 59P1T 47T 55T SPDSTR 50N1T
SMTRIP 81D1T 81D2T OTHTRIP
SER3 SER3 := AMBTRIP PTCFLT RTDFLT COMMIDLE COMMLOSS
REMTRIP RSTTRGT 49A LOSSALRM JAMALRM 46UBA RTDA
55A 50N2T 50G2T VARA 37PA 27P2T 59P2T
SER4 SER4 := SPDSAL 81D1A 81D2A OTHALRM AMBALRM
SALARM WARNING LOADUP LOADLOW 50P2T STOPPED
RUNNING STARTING STAR DELTA START SPEED2
Table 4.49 Event Report Settings
Setting Prompt Setting Range Setting Name := Factory Default
EVENT TRIGGER SV ER := R_TRIG LOSSALRM OR
R_TRIG 46UBA OR R_TRIG 49A OR
R_TRIG 37PA OR R_TRIG 55A OR
R_TRIG VARA
EVENT LENGTH 15, 64 cyc LER := 15
PREFAULT LENGTH 1–59 cyc PRE := 5
Courtesy of NationalSwitchgear.com

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