ABB Relion 650 Series Technical Manual page 385

1MRK 511 424-UEN B
Bay control REC650 2.2 IEC
Technical manual
Set value for Formula used for complex, three-
parameter phase power calculation
"Mode"
1 L1, L2, L3
= U
S
L 1
EQUATION1385 V1 EN-US
2 Arone
=
S U
L L
EQUATION1387 V1 EN-US
3 PosSeq
= ×
S 3
EQUATION1389 V1 EN-US
4 L1L2
=
S U
L L
EQUATION1391 V1 EN-US
5 L2L3
=
S U
L L
EQUATION1393 V1 EN-US
6 L3L1
=
S U
L L
EQUATION1395 V1 EN-US
7 L1
= ×
S 3
EQUATION1397 V1 EN-US
Table continues on next page
Formula used for voltage and
current magnitude calculation
* * *
× I + U × I + U × I
U
L 1 L 2 L 2 L 3 L 3
(Equation 1)
I
EQUATION1386 V1 EN-US
× * - × * U
I U I
1 2 L 1 L L 2 3 L 3
(Equation 3)
I
EQUATION1388 V1 EN-US
× *
U
U I
PosSeq PosSeq
(Equation 5)
I
EQUATION1390 V1 EN-US
× * - * U
( I I )
1 2 L 1 L 2
(Equation 7)
I
EQUATION1392 V1 EN-US
× - U
* *
( I I )
2 3 L 2 L 3
(Equation 9)
I
EQUATION1394 V1 EN-US
× -
* * U
( I I )
3 1 L 3 L 1
(Equation 11)
I
EQUATION1396 V1 EN-US
× U
*
U I
L 1 L 1
(Equation 13)
I
EQUATION1398 V1 EN-US
Section 10
Monitoring
Comment
= + +
( U U U ) / 3
L 1 L 2 L 3
= + +
( I I I ) / 3
L 1 L 2 L 3
(Equation 2)
= +
( U U ) / 2
L L 1 2 L L 2 3
= +
( I I ) / 2
L 1 L 3
(Equation 4)
= ×
3 U
PosSeq
=
I
PosSeq
(Equation 6)
=
U
L L 1 2
= +
( I I ) / 2
L 1 L 2
(Equation 8)
=
U
L L 2 3
= +
( I I ) / 2
L 2 L 3
(Equation 10)
=
U
L L 3 1
= +
( I I ) / 2
L 3 L 1
(Equation 12)
= ×
3 U
L 1
=
I
L 1
(Equation 14)
Used when
three phase-
to-earth
voltages are
available
Used when
two phase-
to-phase
voltages are
available
Used when
only
symmetrical
three phase
power shall
be measured
Used when
only U
L1L2
phase-to-
phase
voltage is
available
Used when
only U
L2L3
phase-to-
phase
voltage is
available
Used when
only U
L3L1
phase-to-
phase
voltage is
available
Used when
only U
L1
phase-to-
earth voltage
is available
379