Date Code 990215
Standard Event Reports and SER
12-13
SEL-351P Manual Técnico
Column
Heading
Corresponding Elements
(Relay Word Bits)
Symbol
Definition
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 S
27S
*
Channel VS instantaneous
undervoltage element 27S picked
up.
59 P
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.
b
59B_ and 59C_ elements picked
up.
c
59C_ and 59A_ elements picked
up.
3
59A_, 59B_, and 59C_ elements
picked up.
Содержание SEL-351P
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