Schweitzer Engineering Laboratories SEL-311L, Instruction Manual, Page: 522 / 734

12-18 Standard Event Reports and SER Date Code 20010625
SEL-311L Instruction Manual
Column
Heading
Corresponding
Elements (Relay
Word Bits) Symbol Definition
81 5 6 81D5, 81D6 5
6
b
Level 5 instantaneous frequency
element asserted.
Level 6 instantaneous frequency
element asserted.
Level 5 and 6 instantaneous
frequency elements asserted.
79 RCSF, CF, 79RS, . Reclosing relay nonexistent.
79CY, 79LO S Reclose supervision failure condition
(RCSF asserts for only 1/4 cycle).
F Close failure condition (CF asserts for
only 1/4 cycle).
R Reclosing relay in Reset State (79RS).
C Reclosing relay in Reclose Cycle
State (79CY).
L Reclosing relay in Lockout State
(79LO).
Time OPTMN, RSTMN o Recloser open interval timer is
timing.
r Recloser reset interval timer is timing.
Shot SH0, SH1, SH2 . Reclosing relay nonexistent.
SH3, SH4 0 shot = 0 (SH0).
1 shot = 1 (SH1).
2 shot = 2 (SH2).
3 shot = 3 (SH3).
4 shot = 4 (SH4).
Zld ZLIN, ZLOUT i Load encroachment “load in” element
ZLIN picked up.
o Load encroachment “load out”
element ZLOUT picked up.
LOP LOP * Loss-of-potential element LOP picked
up.
Vdc DCHI, DCLO H Station battery instantaneous
overvoltage element DCHI picked up.
L Station battery instantaneous
undervoltage element DCLO picked
up.
b Both DCHI and DCLO asserted.