ABB REG670 - Page 889

Set value for
parameter
“Mode”
Formula used for complex, three-
phase power calculation
Formula used for voltage and
current magnitude calculation
Comment
1 L1, L2, L3
* * *
1 1 2 2 3 3
= × + × + ×
L L L L L L
S U I U I U I
EQUATION1385 V1 EN
1 2 3
1 2 3
( ) / 3
( ) / 3
= + +
= + +
L L L
L L L
U U U U
I I I I
EQUATION1386 V1 EN
Used when
three phase-
to-earth
voltages are
available
2
Arone
* *
1 2 1 2 3 3
= × - ×
L L L L L L
S U I U I
EQUATION1387 V1 EN (Equation 137)
1 2 2 3
1 3
( ) / 2
( ) / 2
= +
= +
L L L L
L L
U U U
I I I
EQUATION1388 V1 EN (Equation 138)
Used when
three two
phase-to-
phase
voltages are
available
3
PosSeq
*
3= × ×
PosSeq PosSeq
S U I
EQUATION1389 V1 EN (Equation 139)
3= ×
=
PosSeq
PosSeq
U U
I I
EQUATION1390 V1 EN (Equation 140)
Used when
only
symmetrical
three phase
power shall
be measured
4
L1L2
* *
1 2 1 2
( )= × -
L L L L
S U I I
EQUATION1391 V1 EN (Equation 141)
1 2
1 2
( ) / 2
=
= +
L L
L L
U U
I I I
EQUATION1392 V1 EN (Equation 142)
Used when
only U
L1L2
phase-to-
phase
voltage is
available
5
L2L3
* *
2 3 2 3
( )= × -
L L L L
S U I I
EQUATION1393 V1 EN (Equation 143)
2 3
2 3
( ) / 2
=
= +
L L
L L
U U
I I I
EQUATION1394 V1 EN (Equation 144)
Used when
only U
L2L3
phase-to-
phase
voltage is
available
6
L3L1
* *
3 1 3 1
( )= × -
L L L L
S U I I
EQUATION1395 V1 EN (Equation 145)
3 1
3 1
( ) / 2
=
= +
L L
L L
U U
I I I
EQUATION1396 V1 EN (Equation 146)
Used when
only U
L3L1
phase-to-
phase
voltage is
available
7
L1
*
1 1
3= × ×
L L
S U I
EQUATION1397 V1 EN (Equation 147)
1
1
3= ×
=
L
L
U U
I I
EQUATION1398 V1 EN (Equation 148)
Used when
only U
L1
phase-to-
earth voltage
is available
8
L2
*
2 2
3= × ×
L L
S U I
EQUATION1399 V1 EN (Equation 149)
2
2
3= ×
=
L
L
U U
I I
EQUATION1400 V1 EN (Equation 150)
Used when
only U
L2
phase-to-
earth voltage
is available
9
L3
*
3 3
3= × ×
L L
S U I
EQUATION1401 V1 EN (Equation 151)
3
3
3= ×
=
L
L
U U
I I
EQUATION1402 V1 EN (Equation 152)
Used when
only U
L3
phase-to-
earth voltage
is available
* means complex conjugated value
1MRK502052-UEN B Section 16
Monitoring
883
Technical manual