Schweitzer Engineering Laboratories SEL-421-4 - Table 8.80 Trip Logic

8.33
Date Code 20171021 Instruction Manual SEL-421 Relay
Settings
Group Settings
If a port is configured for MBGA or MBGB communications and the correspond-
ing group setting EMBA or EMBB is enabled, then use the settings shown in
Table 8.79.
Ta b l e 8 .79 M IRRORED BITS Communications Settings
Setting Prompt Default
TX_IDA MIRRORED BITS ID of This Device (1-4) 2
RX_IDA M
IRRORED BITS ID of Device Receiving From (1-4) 1
TX_IDB M
IRRORED BITS ID of This Device (1-4) 2
RX_IDB M
IRRORED BITS ID of Device Receiving From (1-4) 1
TMBmA
a
a
Where m is 1-8.
Transmit MIRRORED BITS (SELOGIC Equation) NA
RMBmA
a
Transmit MIRRORED BITS (SELOGIC Equation) NA
Table 8.80 Trip Logic (Sheet 1 of 2)
Setting Prompt Default Value Increment
TR Trip (SELOGIC Equation) Z1P OR Z1G OR M2PT
OR Z2GT
TRCOMM Communications-Assisted Trip (SEL
OGIC Equation) (Z2P OR Z2G) AND
PLT02
TRCOMMD Directional Element Communications-Assisted Trip (SEL
OGIC Equation) NA
TRSOTF Switch-Onto-Fault Trip (SEL
OGIC Equation) 50P1 OR Z2P OR Z2G
DTA Direct Transfer Trip A-Phase (SEL
OGIC Equation) NA
DTB Direct Transfer Trip B-Phase (SEL
OGIC Equation) NA
DTC Direct Transfer Trip C-Phase (SEL
OGIC Equation) NA
BK1MTR Breaker 1 Manual Trip—BK1 (SEL
OGIC Equation)
8 pushbuttons OC1 OR PB8_PUL
12 pushbuttons OC1 OR PB12PUL
12 pushbuttons and auxiliary TRIP/CLOSE pushbuttons OC1
BK2MTR Breaker 2 Manual Trip—BK2 (SEL
OGIC Equation) NA
ULTR Unlatch Trip (SEL
OGIC Equation) TRGTR
ULMTR1 Unlatch Manual Trip—BK1 (SEL
OGIC Equation) NOT (52AA1 AND
52AB1 AND 52AC1)
ULMTR2 Unlatch Manual Trip—BK2 (SEL
OGIC Equation) 1
TOPD Trip During Open Pole Time Delay (2.000–8000 cycles) 2.000 0.125
TULO Trip Unlatch Option (1, 2, 3, 4) 3
Z2GTSP Zone 2 Ground Distance Time Delay for Single-Pole Tripping (Y, N) N
67QGSP Zone 2 Directional Negative-Sequence/Residual Overcurrent Single-Pole
Trip (Y, N)
N
TDUR1D Single-Pole Trip Minimum Trip Duration Time Delay (2.000–8000 cycles) 6.000 0.125
TDUR3D Three-Pole Trip Minimum Trip Duration Time Delay (2.000–8000 cycles) 12.000 0.125
E3PT Three-Pole Trip Enable (SEL
OGIC Equation) 1
E3PT1 Breaker 1 Three-Pole Trip (SEL
OGIC Equation) 1