Sel SEL-421 - Page 572

R.A.2
SEL-421 Relay Reference Manual Date Code 20111215
Relay Word Bits
Alphabetic
32QGE 32QG internal enable 21
32QR Reverse negative-sequence overcurrent directional
declaration
20
32SPOF Forward open-pole directional declaration 20
32SPOR Reverse open-pole directional declaration 20
32VE 32V internal enable 21
3P1CLS Three-pole Circuit Breaker 1 reclose supervision
(SEL
OGIC control equation)
37
3P2CLS Three-pole Circuit Breaker 2 reclose supervision
(SEL
OGIC control equation)
37
3PARC Three-pole reclose initiate qualified 34
3PLSHT Three-pole reclose last shot 35
3PO All three poles open 70
3POBK1 Three-pole open Circuit Breaker 1 34
3POBK2 Three-pole open Circuit Breaker 2 35
3POI Three-pole open interval timing 42
3POISC Three-pole open supervision condition 42
3POLINE Three-pole open line 35
3PRCIP Three-pole reclaim in progress 40
3PRI Three-pole reclose initiation (SEL
OGIC control equation) 34
3PS Trip logic three-phase selected 46
3PSHOT0 Three-pole shot counter =0 41
3PSHOT1 Three-pole shot counter =1 41
3PSHOT2 Three-pole shot counter =2 41
3PSHOT3 Three-pole shot counter =3 41
3PSHOT4 Three-pole shot counter =4 41
3PT Three-pole trip 47
50ABC Positive-sequence current above 50ABCP threshold 17
50FA1 Circuit Breaker 1 A-phase current threshold exceeded 58
50FA2 Circuit Breaker 2 A-phase current threshold exceeded 64
50FB1 Circuit Breaker 1 B-phase current threshold exceeded 58
50FB2 Circuit Breaker 2 B-phase current threshold exceeded 64
50FC1 Circuit Breaker 1 C-phase current threshold exceeded 58
50FC2 Circuit Breaker 2 C-phase current threshold exceeded 64
50FOA1 Circuit Breaker 1 A-phase flashover current threshold
exceeded
61
50FOA2 Circuit Breaker 2 A-phase flashover current threshold
exceeded
67
50FOB1 Circuit Breaker 1 B-phase flashover current threshold
exceeded
61
50FOB2 Circuit Breaker 2 B-phase flashover current threshold
exceeded
67
50FOC1 Circuit Breaker 1 C-phase flashover current threshold
exceeded
61
Table A.1 Alphabetic List of Relay Word Bits (Sheet 2 of 21)
Name Description
Row