12.13
Date Code 20080213 Instruction Manual SEL-351A Relay
Standard Event Reports and SER
Standard 15/30-Cycle Event Reports
50 P 50A, 50B, 50C A Single-phase instantaneous over-
current element 50A picked up.
B Single-phase instantaneous over-
current element 50B picked up.
C Single-phase instantaneous over-
current element 50C picked up.
a Both 50A and 50B picked up.
b Both 50B and 50C picked up.
c Both 50C and 50A picked up.
3 50A, 50B, and 50C picked up.
50 PP 50AB1, 50AB2,
50AB3, 50AB4,
50BC1, 50BC2,
A Phase-to-phase instantaneous over-
current element 50AB1, 50AB2,
50AB3, or 50AB4 picked up.
50BC3, 50BC4,
50CA1, 50CA2,
50CA3, 50CA4
B Phase-to-phase instantaneous over-
current element 50BC1, 50BC2,
50BC3, or 50BC4 picked up.
C Phase-to-phase instantaneous over-
current element 50CA1, 50CA2,
50CA3, or 50CA4 picked up.
a 50AB_ and 50CA_ picked up.
b 50AB_ and 50BC_ picked up.
c 50BC_ and 50CA_ picked up.
3 50AB_, 50BC_, and 50CA_ picked
up.
32 PQ F32P P Forward phase directional element
F32P picked up.
R32P p Reverse phase directional element
R32P picked up.
F32Q Q Forward negative-sequence direc-
tional element F32Q picked up.
R32Q q Reverse negative-sequence direc-
tional element R32Q picked up.
32 NG F32QG Q Forward negative-sequence direc-
tional element F32QG picked up.
R32QG q Reverse negative-sequence R32QG
picked up.
F32V V Forward zero-sequence voltage-
polarized element F32V picked up.
R32V v Reverse zero-sequence voltage-
polarized R32V picked up.
F32I I Forward channel IN current-polar-
ized directional element F32I
picked up.
R32I i Reverse channel IN current-polar-
ized directional element R32I
picked up.
Table 12.3 Output, Input, and Protection, and Control Element Event Report
Columns (Sheet 2 of 9)
Column Heading
Corresponding
Elements (Relay
Word Bits)
Symbol Definition
Courtesy of NationalSwitchgear.com
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