Schweitzer Engineering Laboratories SEL-311L, Instruction Manual, Page: 347 / 734

Date Code 20010625 Setting the Relay 9-9
SEL----311L Instruction Manual
Table 9.4: Relay Word Bit Definitions for the SEL-311L
Row Bit Definition
Primary
Application
0 EN Relay Enabled (see Table 5.1) Target
TRP Relay Trip
TIME Time Trip
COMM Communications-Assisted Trip
87 Line Current Differential Trip
50_51 Instantaneous and Time-Overcurrent Trip
RCRS Recloser in Reset State
RCLO Recloser in Lockout State
1 A Phase A is involved in the fault (see Table 5.1)
B Phase B is involved in the fault
C Phase C is involved in the fault
G Residual ground element tripped for fault or residual
ground current above pickup of residual ground
element at time of trip
ZONE1 Fault in Zone 1/Level 1
ZONE2 Fault in Zone 2/Level 2
ZONE3 Fault in Zone 3/Level 3
87CHFAIL Differential Channel Failure
2 M1P Zone 1 phase distance, instantaneous
(see Figure 3.29) Tripping,
Control
M1PT Zone 1 phase distance, time delayed
(see Figure 3.39)
Z1G Zone 1 mho and/or quad. distance, instantaneous (see
Figure 3.32)
Z1GT Zone 1 ground distance, time delayed
(see Figure 3.39)
M2P Zone 2 phase distance, instantaneous
(see Figure 3.30)
M2PT Zone 2 phase distance, time delayed
(see Figure 3.39)
Z2G Zone 2 mho and/or quad. distance, instantaneous (see
Figure 3.33)
Z2GT Zone 2 ground distance, time delayed
(see Figure 3.39)