Schweitzer Engineering Laboratories SEL-352-1 - Fault Current Protection Scheme 4; Fault Current Protection Scheme 5

7-20 Setting the Relay Date Code 20010731
SEL-352-1, -2 Instruction Manual
Fault Current Protection Scheme 4
The default SEL
OGIC control equation settings for the fault current protection logic Scheme 4
follow:
TTA =TRIPA
TTB =TRIPB
TTC =TRIPC
LFAS =NA
LFAR =NA
LFBS =NA
LFBR =NA
LFCS =NA
LFCR =NA
FCA =NA
FCB =NA
FCC =NA
FBF =50FTA*TTAD + 50FTB*TTBD + 50FTC*TTCD
Fault Current Protection Scheme 5
The default SEL
OGIC control equation settings for the fault current protection logic Scheme 5
follow:
TTA =NA
TTB =NA
TTC =NA
LFAS =NA
LFAR =NA
LFBS =NA
LFBR =NA
LFCS =NA
LFCR =NA
FCA =TRIPA
FCB =TRIPB
FCC =TRIPC
FBF =50FTA*FCAD + 50FTB*FCBD + 50FTC*FCCD