12.15
Date Code 20080213 Instruction Manual SEL-351A Relay
Standard Event Reports and SER
Standard 15/30-Cycle Event Reports
c 27C_ and 27A_ elements picked
up.
3 27A_, 27B_ and 27C_ elements
picked up.
27 PP 27AB, 27BC,
27CA
A AB phase-to-phase instantaneous
undervoltage element 27AB picked
up.
B BC phase-to-phase instantaneous
undervoltage element 27BC picked
up.
C CA phase-to-phase instantaneous
undervoltage element 27CA picked
up.
a 27AB and 27CA elements picked
up.
b 27AB and 27BC elements picked
up.
c 27BC and 27CA elements picked
up.
3 27AB, 27BC and 27CA elements
picked up.
27 PP2
(delta-connected)
27AB2, 27BC2,
27CA2
A AB phase-to-phase instantaneous
undervoltage element 27AB2
picked up.
B BC phase-to-phase instantaneous
undervoltage element 27BC2
picked up.
C CA phase-to-phase instantaneous
undervoltage element 27CA2
picked up.
a 27AB2 and 27CA2 elements
picked up.
b 27AB2 and 27BC2 elements
picked up.
c 27BC2 and 27CA2 elements
picked up.
3 27AB2, 27BC2, and 27CA2 ele-
ments picked up.
27 S 27S * Channel VS instantaneous under-
voltage element 27S picked up.
59 P
(wye-connected)
59A1, 59A2,
59B1, 59B2,
59C1, 59C2
A A-phase instantaneous overvoltage
element 59A1 or 59A2 picked up.
B B-phase instantaneous overvoltage
element 59B1 or 59B2 picked up.
C C-phase instantaneous overvoltage
element 59C1 or 59C2 picked up.
a 59A_ and 59B_ elements picked
up.
Table 12.3 Output, Input, and Protection, and Control Element Event Report
Columns (Sheet 4 of 9)
Column Heading
Corresponding
Elements (Relay
Word Bits)
Symbol Definition
Courtesy of NationalSwitchgear.com
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