ABB Relion 670 series, Technical Manual

Page: 1041 / 1432

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
( )
( )
/ 3
/ 3
A B C
A B C
V V V V
I I I I
= + +
= + +
EQUATION1562 V1 EN-US
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 207)
( )
( )
/ 2
/ 2
AB BC
A C
V V V
I I I
= +
= +
EQUATION1564 V1 EN-US
(Equation 208)
Used when three two phase-to-
phase voltages are available
3 PosSeq
*
3
PosSeq PosSeq
S V I
= × ×
EQUATION1565 V1 EN-US
(Equation 209)
3
PosSeq
PosSeq
V V
I I
= ×
=
EQUATION1566 V1 EN-US
(Equation 210)
Used when only symmetrical
three phase power shall be
measured
4 AB
( )
* *
AB A B
S V I I
= × -
EQUATION1567 V1 EN-US
(Equation 211)
( )
/ 2
AB
A B
V V
I I I
=
= +
EQUATION1568 V1 EN-US
(Equation 212)
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 213)
( )
/ 2
BC
B C
V V
I I I
=
= +
EQUATION1570 V1 EN-US
(Equation 214)
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 215)
( )
/ 2
CA
C A
V V
I I I
=
= +
EQUATION1572 V1 EN-US
(Equation 216)
Used when only V
CA
phase-to-
phase voltage is available
7 A
*
3
A A
S V I
= × ×
EQUATION1573 V1 EN-US
(Equation 217)
3
A
A
V V
I I
= ×
=
EQUATION1574 V1 EN-US
(Equation 218)
Used when only V
A
phase-to-
ground voltage is available
Table continues on next page
1MRK 502 066-UUS B Section 16
Monitoring
1035
Technical manual