Date Code 990215
Standard Event Reports and SER
12-15
SEL-351P Manual Técnico
Column
Heading
Corresponding Elements
(Relay Word Bits)
Symbol
Definition
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 element picked up.
2
Second synchronism check
element 25A2 element picked up.
b
Both 25A1 and 25A2 picked up.
81 27B
27B81
*
Frequency logic instantaneous
undervoltage element 27B81
picked up.
81 12
81D1, 81D2
1
Frequency element 81D1 picked
up.
2
Frequency element 81D2 picked
up.
b
Both 81D1 and 81D2 picked up.
81 34
81D3, 81D4
3
Frequency element 81D3 picked
up.
4
Frequency element 81D4 picked
up.
b
Both 81D3 and 81D4 picked up.
81 56
81D5, 81D6
5
Frequency element 81D5 picked
up.
6
Frequency element 81D6 picked
up.
b
Both 81D5 and 81D6 picked up.
Содержание SEL-351P
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