Schweitzer Engineering Laboratories SEL-387E - Page 364

9-12 Analyzing Events Date Code 20080110
SEL-387E Instruction Manual
Column Heading Symbol Definition
59G 1
2
b
Level 1 instantaneous residual overvoltage element
picked up
Level 2 instantaneous residual overvoltage element
picked up
Both Level 1 and Level 2 residual overvoltage elements
picked up
59Q Q Negative-sequence instantaneous overvoltage element
59Q picked up
81D 12 1
2
b
Frequency element 81D1 asserted
Frequency element 81D2 asserted
Both frequency elements asserted
81D 34 3
4
b
Frequency element 81D3 asserted
Frequency element 81D4 asserted
Both frequency elements asserted
81D 56 5
6
b
Frequency element 81D5 asserted
Frequency element 81D6 asserted
Both frequency elements asserted
TRP 12 1
2
b
TRIP1 asserted
TRIP2 asserted
TRIP1 and TRIP2 asserted
TRP 34 3
4
b
TRIP3 asserted
TRIP4 asserted
TRIP3 and TRIP4 asserted
DC 12 1
2
b
DC1 asserted
DC2 asserted
DC1 and DC2 asserted
DC34 3
4
b
DC3 asserted
DC4 asserted
DC3 and DC4 asserted
DEM
P12
1
2
b
PDEM1 asserted
PDEM2 asserted
PDEM1 and PDEM2 asserted
DEM
P3
3 PDEM3 asserted
DEM
N12
1
2
b
NDEM1 asserted
NDEM2 asserted
NDEM1 and NDEM2 asserted
DEM
N3
3 NDEM3 asserted