4-24
Operation Within SEL-2030
Date Code 980420
SEL-2711 Instruction Manual
Relay Type
The relay type field is the first register in each block of relay data. It encodes the relay type.
There are two classes of relay types: fixed encodings which have values less than 10000 and
translated encodings which have a value greater than 10000. Table 4.7 lists all of the fixed
encodings.
Table 4.7: Relay Type Encodings
Relay Type Code
Relay Type
0
Not an auto-configured SEL IED port
1
SEL-151
2
SEL-251
3
SEL-151C/251C
4
SEL-151D/251D
5
SEL-121H/221H
6
SEL-321
7
SEL-BFR/2BFR
8
SEL-279H
9
SEL-151D-1/251D-1
10
SEL-151CD-1/251CD-1
1000
SEL-PG10/2PG10
1001
SEL-PG10-7/2PG10-7
1002
SEL-PG10-8/2PG10-8
1010
SEL-BFR-1/2BFR-1
1020
SEL-121-10
1021
SEL-121-16/221-16
1022
SEL-121-17
1023
SEL-121-2A
1030
SEL-49
1031
SEL-49E
2000
SEL-2020
2001
SEL-2030
9999
Unrecognized SEL IED
SEL relays that are not listed in the table above are encoded according to the following rules:
1. The first 3 digits are the relay number;
2. The fourth digit encodes relay character code as: 0=no character, 1=B, 2=C, 3=D,
4=CD, 5=F, 6=G, 7=H, 8=S, 9=V; and
3. The fifth digit is the dash number, or zero if there is no dash number.
For example, the SEL-587 is encoded as 58700, the SEL-251-3 is encoded as 25103, and the
SEL-221G-6 is encoded as 22166.