Schweitzer Engineering Laboratories SEL-751 - Page 877

K.7
Date Code 20170927 Instruction Manual SEL-751 Relay
Relay Word Bits
Definitions
3V0 Asserts when VSCONN := 3V0
129
50A1P Level 1 A-phase instantaneous overcurrent element pickup
1
50B1P Level 1 B-phase instantaneous overcurrent element pickup
1
50C1P Level 1 C-phase instantaneous overcurrent element pickup
1
50G1P Level 1 residual-ground instantaneous overcurrent element pickup
4
50G1T Level 1 residual-ground instantaneous overcurrent element trip
5
50G2P Level 2 residual-ground instantaneous overcurrent element pickup
4
50G2T Level 2 residual-ground instantaneous overcurrent element trip
5
50G3P Level 3 residual-ground instantaneous overcurrent element pickup
4
50G3T Level 3 residual-ground instantaneous overcurrent element trip
5
50G4P Level 4 residual-ground instantaneous overcurrent element pickup
4
50G4T Level 4 residual-ground instantaneous overcurrent element trip
5
50GF Forward direction residual-ground overcurrent threshold exceeded
125
50GR Reverse direction residual-ground overcurrent threshold exceeded
125
50N1P Level 1 neutral-ground instantaneous overcurrent element pickup
4
50N1T Level 1 neutral-ground instantaneous overcurrent element trip
5
50N2P Level 2 neutral-ground instantaneous overcurrent element pickup
4
50N2T Level 2 neutral-ground instantaneous overcurrent element trip
5
50N3P Level 3 neutral-ground instantaneous overcurrent element pickup
4
50N3T Level 3 neutral-ground instantaneous overcurrent element trip
5
50N4P Level 4 neutral-ground instantaneous overcurrent element pickup
4
50N4T Level 4 neutral-ground instantaneous overcurrent element trip
5
50NAF Sample-based neutral overcurrent element pickup
1
50NF Forward direction neutral overcurrent threshold exceeded
153
50NR Reverse direction neutral overcurrent threshold exceeded
153
50P1P Level 1 phase instantaneous overcurrent element pickup
2
50P1T Level 1 phase instantaneous overcurrent element trip
3
50P2P Level 2 phase instantaneous overcurrent element pickup
2
50P2T Level 2 phase instantaneous overcurrent element trip
3
50P3P Level 3 phase instantaneous overcurrent element pickup
2
50P3T Level 3 phase instantaneous overcurrent element trip
3
50P4P Level 4 phase instantaneous overcurrent element pickup
2
50P4T Level 4 phase instantaneous overcurrent element trip
3
50PAF Sample based phase overcurrent element pickup
1
Table K.2 Relay Word Bit Definitions for the SEL-751 Relay (Sheet 2 of 17)
Bit Definition Row