Date Code 20010731
Relay Word
F-1
SEL-352-1, -2 Instruction Manual
APPENDIX F: RELAY WORD
The SEL-352 Relay Word is a list of logical bits that indicate relay logic decisions. The
following tables give the labels of each bit. The complete Relay Word is broken up into sections
by relay logic element types. The row number is used with the
TARGET n <ENTER>
command for displaying the status of each bit in that particular row. A description of each bit
listed alphabetically follows. Row 16 Relay Word bits (BCW, 50R, 50RA, 50RB, and 50RC) are
only available in the SEL-352-2 Relay.
Table F.1: Relay Word
Row
Relay Word Labels
Front-Panel Targets (not for use in SEL
OGIC
®
Control Equations)
0
EN
PF
86BFT
86RS
TRIP
CLOSE
52A
MOD
1
FAULT
LOAD
UBAL
FLASH
THERM
A
B
C
General Elements
2
Y59L3
X59L3
50LDC
50LDB
50LDA
50FTC
50FTB
50FTA
3
87THA
87FOA
Y27D3
X27D3
50N
50MDC
50MDB
50MDA
4
47Q
37OP
25T
46P
87THC
87FOC
87THB
87FOB
5
X59LC
X59HC
X27DB
X59LB
X59HB
X27DA
X59LA
X59HA
6
ZERO
Y27DC
Y59LC
Y27DB
Y59LB
Y27DA
Y59LA
X27DC
7
ONE
50MNC
50MNB
50MNA
87F
87H
87TH
X59H
8
25M
25C
46C
46B
46A
50MD
50LD
50FT
9
Y47Q
X47Q
37OPC
37OPB
37OPA
87HC
87HB
87HA
10
CCMD
TCMD
XNTC
XPTC
XNTB
XPTB
XNTA
XPTA
11
*
*
YNTC
YPTC
YNTB
YPTB
YNTA
YPTA
12
5%
5%
5%
5%
5%
5%
5%
5%
5%
5%
5%
5%
5%
5%
5%
5%
/%
/%
/%
/%
/%
/%
/%
/%
15
LB16
LB15
LB14
LB13
LB12
LB11
LB10
LB9
16
*
*
*
BCW
50R
50RC
50RB
50RA
17
*
*
IN106
IN105
IN104
IN103
IN102
IN101
18
IN208
IN207
IN206
IN205
IN204
IN203
IN202
IN201
19
IN216
IN215
IN214
IN213
IN212
IN211
IN210
IN209
20
IN308
IN307
IN306
IN305
IN304
IN303
IN302
IN301
21
IN316
IN315
IN314
IN313
IN312
IN311
IN310
IN309
22
MCLOSE
CLOSE
TRIP3
TRIPC
TRIPB
TRIPA
SS2
SS1
23
*
LODCT
LOD2
LOD1
MODST
52AC
52AB
52AA
SEL
OGIC
Control Equation SET A Elements
24
L1CR
L1CS
L1BQ
L1BR
L1BS
L1AQ
L1AR
L1AS
25
*
T1CD
T1C
T1BD
T1B
T1AD
T1A
L1CQ
26
*
*
*
*
*
SAC
SAB
SAA
Fault Current Protection Elements
27
LFAR
LFAS
TTCD
TTC
TTBD
TTB
TTAD
TTA
28
*
LFCQ
LFCR
LFCS
LFBQ
LFBR
LFBS
LFAQ
29
*
*
FCCD
FCC
FCBD
FCB
FCAD
FCA
Содержание SEL-352-1
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