ABB Relion RES670, Техническое руководство

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which one of the nine available measuring modes shall be used within the function.
Available options are summarized in the following table:
Set value for
parameter
“Mode”
Formula used for complex, three-
phase power calculation
Formula used for voltage and
current magnitude calculation
Comment
1 A, B, C
* * *
A A B B C C
S V I V I V I
= × + × + ×
EQUATION1561 V1 EN-US
(Equation 64)
( )
( )
/ 3
/ 3
A B C
A B C
V V V V
I I I I
= + +
= + +
EQUATION1562 V1 EN-US
(Equation 65)
Used when three
phase-to-ground
voltages are
available
2 Arone
* *
AB A BC C
S V I V I
= × - ×
EQUATION1563 V1 EN-US
(Equation 66)
( )
( )
/ 2
/ 2
AB BC
A C
V V V
I I I
= +
= +
EQUATION1564 V1 EN-US
(Equation 67)
Used when two
phase-to-phase
voltages are
available
3 PosSeq
*
3
PosSeq PosSeq
S V I
= × ×
EQUATION1565 V1 EN-US
(Equation 68)
3
PosSeq
PosSeq
V V
I I
= ×
=
EQUATION1566 V1 EN-US
(Equation 69)
Used when only
symmetrical three
phase power shall
be measured
4 AB
( )
* *
AB A B
S V I I
= × -
EQUATION1567 V1 EN-US
(Equation 70)
( )
/ 2
AB
A B
V V
I I I
=
= +
EQUATION1568 V1 EN-US
(Equation 71)
Used when only
V
AB
phase-to-
phase voltage is
available
5 BC
( )
* *
BC B C
S V I I
= × -
EQUATION1569 V1 EN-US
(Equation 72)
( )
/ 2
BC
B C
V V
I I I
=
= +
EQUATION1570 V1 EN-US
(Equation 73)
Used when only
V
BC
phase-to-
phase voltage is
available
6 CA
( )
* *
CA C A
S V I I
= × -
EQUATION1571 V1 EN-US
(Equation 74)
( )
/ 2
CA
C A
V V
I I I
=
= +
EQUATION1572 V1 EN-US
(Equation 75)
Used when only
V
CA
phase-to-
phase voltage is
available
7 A
*
3
A A
S V I
= × ×
EQUATION1573 V1 EN-US
(Equation 76)
3
A
A
V V
I I
= ×
=
EQUATION1574 V1 EN-US
(Equation 77)
Used when only
V
A
phase-to-
ground voltage is
available
Table continues on next page
1MRK 511 408-UUS A
Section 16
Monitoring
Phasor measurement unit RES670 2.2 ANSI 517
Technical manual