ABB RELION 670 Series Technical Manual page 1041

1MRK 502 066-UUS B
Set value
for
parameter
"Mode"
1 A, B, C
2 Arone
3 PosSeq
4 AB
5 BC
6 CA
7 A
Table continues on next page
Technical manual
Formula used for complex,
three-phase power calculation
= × + × +
* *
S V I V I V I
A A B B C
EQUATION1561 V1 EN-US
= × - ×
* *
S V I V I
AB A BC C
(Equation 207)
EQUATION1563 V1 EN-US
= × × *
S 3 V I
PosSeq PosSeq
(Equation 209)
EQUATION1565 V1 EN-US
( )
= × * - *
S V I I
AB A B
(Equation 211)
EQUATION1567 V1 EN-US
( )
= × * - *
S V I I
BC B C
(Equation 213)
EQUATION1569 V1 EN-US
( )
= × -
* *
S V I I
CA C A
(Equation 215)
EQUATION1571 V1 EN-US
= × ×
*
S 3 V I
A A
(Equation 217)
EQUATION1573 V1 EN-US
Formula used for voltage
and current magnitude
calculation
( )
×
*
= + +
V V V V
C
A B C
( )
= + +
I I I I / 3
A B C
EQUATION1562 V1 EN-US
( )
= +
V V V
AB BC
( )
= +
I I I / 2
A C
(Equation 208)
EQUATION1564 V1 EN-US
= ×
V 3 V
PosSeq
=
I I
PosSeq
(Equation 210)
EQUATION1566 V1 EN-US
=
V V
AB
( )
= +
I I I / 2
A B
(Equation 212)
EQUATION1568 V1 EN-US
=
V V
BC
( )
= +
I I I / 2
B C
(Equation 214)
EQUATION1570 V1 EN-US
=
V V
CA
( )
= +
I I I / 2
C A
(Equation 216)
EQUATION1572 V1 EN-US
= ×
V 3 V
A
=
I I
A
(Equation 218)
EQUATION1574 V1 EN-US
Comment
Used when three phase-to-
ground voltages are available
/ 3
Used when three two phase-to-
phase voltages are available
/ 2
Used when only symmetrical
three phase power shall be
measured
Used when only V phase-to-
AB
phase voltage is available
Used when only V phase-to-
BC
phase voltage is available
Used when only V phase-to-
CA
phase voltage is available
Used when only V phase-to-
A
ground voltage is available
Section 16
Monitoring
1035