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
(
)
(
)
/ 3
/ 3
A
B
C
A
B
C
V
V
V
V
I
I
I
I
=
+
+
=
+
+
EQUATION1562 V1 EN
Used when three
phase-to-ground
voltages are
available
2
Arone
*
*
AB
A
BC
C
S
V
I
V
I
=
×
-
×
EQUATION1563 V1 EN
(Equation 160)
(
)
(
)
/ 2
/ 2
AB
BC
A
C
V
V
V
I
I
I
=
+
=
+
EQUATION1564 V1 EN
(Equation 161)
Used when three
two phase-to-
phase voltages
are available
3
PosSeq
*
3
PosSeq
PosSeq
S
V
I
= ×
×
EQUATION1565 V1 EN
(Equation 162)
3
PosSeq
PosSeq
V
V
I
I
=
×
=
EQUATION1566 V1 EN
(Equation 163)
Used when only
symmetrical three
phase power shall
be measured
4
AB
(
)
*
*
AB
A
B
S
V
I
I
=
×
-
EQUATION1567 V1 EN
(Equation 164)
(
)
/ 2
AB
A
B
V
V
I
I
I
=
=
+
EQUATION1568 V1 EN
(Equation 165)
Used when only
V
AB
phase-to-
phase voltage is
available
5
BC
(
)
*
*
BC
B
C
S
V
I
I
=
×
-
EQUATION1569 V1 EN
(Equation 166)
(
)
/ 2
BC
B
C
V
V
I
I
I
=
=
+
EQUATION1570 V1 EN
(Equation 167)
Used when only
V
BC
phase-to-
phase voltage is
available
6
CA
(
)
*
*
CA
C
A
S
V
I
I
=
×
-
EQUATION1571 V1 EN
(Equation 168)
(
)
/ 2
CA
C
A
V
V
I
I
I
=
=
+
EQUATION1572 V1 EN
(Equation 169)
Used when only
V
CA
phase-to-
phase voltage is
available
7
A
*
3
A
A
S
V I
= ×
×
EQUATION1573 V1 EN
(Equation 170)
3
A
A
V
V
I
I
=
×
=
EQUATION1574 V1 EN
(Equation 171)
Used when only
V
A
phase-to-
ground voltage is
available
Table continues on next page
Section 15
1MRK505222-UUS C
Monitoring
902
Technical reference manual
Содержание Relion 670 series
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