Schweitzer Engineering Laboratories SEL-311C - Page 435

12.13
Date Code 20060320 Instruction Manual SEL-311C Relay
Standard Event Reports and SER
Standard 15/30/60/180-Cycle Event Reports
c 59C and 59A elements picked up.
3 59A, 59B and 59C elements picked up.
59 PP 59AB, 59BC, 59CA A AB phase-to-phase instantaneous overvoltage element 59AB picked
up.
B BC phase-to-phase instantaneous overvoltage element 59BC picked up.
C CA phase-to-phase instantaneous overvoltage element 59CA picked
up.
a 59AB and 59CA elements picked up.
b 59AB and 59BC elements picked up.
c 59BC and 59CA elements picked up.
3 59AB, 59BC and 59CA elements picked up.
59 S 59S * VS instantaneous overvoltage element 59S picked up.
59 V1 Q 59V1, 59Q 1 Positive-sequence instantaneous overvoltage element 59V1 picked up.
Q Negative-sequence instantaneous overvoltage element 59Q picked up.
b Both 59V1 and 59Q picked up.
59 N 59N1, 59N2 1 First ground instantaneous overvoltage element 59N1 picked up.
2 Second ground instantaneous overvoltage element 59N2 picked up.
b Both 59N1 and 59N2 picked up.
25 59 V 59VP, 59VS P Phase voltage window element
59VP picked up (used in synchronism check).
S Channel VS voltage window element
59VS picked up (used in synchronism check).
b Both 59VP and 59VS picked up.
25 SF SF * Slip frequency element SF picked up (used in synchronism check).
25 A 25A1, 25A2 1 First synchronism check element 25A1 picked up.
2 Second synchronism check element 25A2 picked up.
b Both 25A1 and 25A2 picked up.
27B 27B81 * Undervoltage element for
frequency element blocking (any phase) asserted.
81 1 2 81D1, 81D2 1
2
b
Level 1 instantaneous frequency element asserted.
Level 2 instantaneous frequency element asserted.
Level 1 and 2 instantaneous frequency elements asserted.
81 3 4 81D3, 81D4 3
4
b
Level 3 instantaneous frequency element asserted.
Level 4 instantaneous frequency element asserted.
Level 3 and 4 instantaneous frequency elements asserted.
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,
79CY, 79LO
. Reclosing relay nonexistent.
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).
Table 12.4 Output, Input, Protection, and Control Element Event Report Columns (Sheet 4 of 6)
Column Heading
Corresponding
Elements (Relay
Word Bits)
Symbol Definition