Schweitzer Engineering Laboratories SEL-321 - Table 2.20: Internal Elements (SEL-321-1 Relay Only)

2-34 Specifications Date Code 20011026
SEL-321/321-1 Instruction Manual
Table 2.20: Internal Elements (SEL-321-1 Relay Only)
TAR Elements
29
RAG4 RAG3 RAG2 RAG1 MER MTO MTU MTCS
30
RCG4 RCG3 RCG2 RCG1 RBG4 RBG3 RBG2 RBG1
31
50AL4 50AL3 50AL2 50AL1 VPOLV N3PT L3PT PTRX
32
50CL4 50CL3 50CL2 50CL1 50BL4 50BL3 50BL2 50BL1
33
50G4 50G3 50G2 50G1 50CL 50BL 50AL *
34
OSB4 OSB3 OSB2 OSB1 50PP4 50PP3 50PP2 50PP1
35
TS TC TB TA ZLOUT ZLIN ILOP 50P
36
SPT_EN * * * * 52AC 52AB 52AA
37
50AB4 50AB3 50AB2 50AB1 ATPC ATPB ATPA 50PPL
38
50CA4 50CA3 50CA2 50CA1 50BC4 50BC3 50BC2 50BC1
39
* 51NR 51QR 51PR * * * *
Table 2.21: Internal Element Summary (SEL-321-1 Relay Only)
Element Comment
RAG4
RAG3
RAG2
RAG1
MER
MTO
MTU
MTCS
A-phase-Ground Resistance Blinder, Zone 4
A-phase-Ground Resistance Blinder, Zone 3
A-phase-Ground Resistance Blinder, Zone 2
A-phase-Ground Resistance Blinder, Zone 1
Mask to Trigger Event Report Variable
Mask for Trip - Breaker Open Variable
Mask for Trip Unconditional Variable
Mask for Trip Communications Scheme Variable
RCG4
RCG3
RCG2
RCG1
RBG4
RBG3
RBG2
RBG1
C-phase-Ground Resistance Blinder, Zone 4
C-phase-Ground Resistance Blinder, Zone 3
C-phase-Ground Resistance Blinder, Zone 2
C-phase-Ground Resistance Blinder, Zone 1
B-phase-Ground Resistance Blinder, Zone 4
B-phase-Ground Resistance Blinder, Zone 3
B-phase-Ground Resistance Blinder, Zone 2
B-phase-Ground Resistance Blinder, Zone 1
50AL4
50AL3
50AL2
50AL1
VPOLV
N3PT
L3PT
PTRX
A-phase Supervisory Overcurrent, Zone 4
A-phase Supervisory Overcurrent, Zone 3
A-phase Supervisory Overcurrent, Zone 2
A-phase Supervisory Overcurrent, Zone 1
Positive-Sequence Polarizing Voltage Valid
Not Three-Pole Trip
Line Three-Pole Trip
Permissive Trip Received