Schweitzer Engineering Laboratories SEL-751 - Page 881

K.11
Date Code 20170927 Instruction Manual SEL-751 Relay
Relay Word Bits
Definitions
67P4P Level 4 phase directional overcurrent pickup
122
67P4T Level 4 phase directional overcurrent trip
122
67Q1P Level 1 negative-sequence directional overcurrent pickup
123
67Q1T Level 1 negative-sequence directional overcurrent trip
123
67Q2P Level 2 negative-sequence directional overcurrent pickup
123
67Q2T Level 2 negative-sequence directional overcurrent trip
123
67Q3P Level 3 negative-sequence directional overcurrent pickup
123
67Q3T Level 3 negative-sequence directional overcurrent trip
123
67Q4P Level 4 negative-sequence directional overcurrent pickup
123
67Q4T Level 4 negative-sequence directional overcurrent trip
123
78VSBL Vector shift element block condition
149
78VSO Vector shift element output
149
79CY Reclosing relay in reclose cycle state
30
79LO Reclosing relay in lockout state
30
79RS Reclosing relay in reset state
30
81D1T Level 1 definite-time over- and underfrequency trip
11
81D2T Level 2 definite-time over- and underfrequency trip
11
81D3T Level 3 definite-time over- and underfrequency trip
11
81D4T Level 4 definite-time over- and underfrequency trip
11
81D5T Level 5 definite-time over- and underfrequency trip
11
81D6T Level 6 definite-time over- and underfrequency trip
11
81R1T Level 1 rate-of-change-of-frequency element trip
119
81R2T Level 2 rate-of-change-of-frequency element trip
119
81R3T Level 3 rate-of-change-of-frequency element trip
119
81R4T Level 4 rate-of-change-of-frequency element trip
119
81RFBL Fast rate-of-change-of-frequency block output SEL
OGIC
130
81RFBLK Fast rate-of-change-of-frequency overall block logic output
130
81RFI Fast rate-of-change-of-frequency initiate
130
81RFP Fast rate-of-change-of-frequency pickup
130
81RFT Fast rate-of-change-of-frequency trip output
130
89A2P1 2 position disconnect 1 N/O contact
159
89A2P2 2 position disconnect 2 N/O contact
159
89A2P3 2 position disconnect 3 N/O contact
160
89A2P4 2 position disconnect 4 N/O contact
160
Table K.2 Relay Word Bit Definitions for the SEL-751 Relay (Sheet 6 of 17)
Bit Definition Row