ABB Relion REQ650, Applications Manual

Page: 152 / 340

Mode : The voltage and current used for the power measurement. The setting
possibilities are shown in table 20 .
For reverse power applications PosSeq or Arone modes are strongly recommended.
Table 20: Complex power calculation
Set value Mode Formula used for complex power calculation
L1, L2, L3
* * *
1 1 2 2 3 3 L L L L L L
S U I U I U I
= × + × + ×
EQUATION1697 V1 EN
(Equation 45)
Arone
* *
1 2 1 2 3 3 L L L L L L
S U I U I
= × - ×
EQUATION1698 V1 EN
(Equation 46)
PosSeq
*
3
PosSeq PosSeq
S U I
= × ×
EQUATION1699 V1 EN
(Equation 47)
L1L2
* *
1 2 1 2
( )
L L L L
S U I I
= × -
EQUATION1700 V1 EN
(Equation 48)
L2L3
* *
2 3 2 3
( )
L L L L
S U I I
= × -
EQUATION1701 V1 EN
(Equation 49)
L3L1
* *
3 1 3 1
( )
L L L L
S U I I
= × -
EQUATION1702 V1 EN
(Equation 50)
L1
*
1 1
3
L L
S U I
= × ×
EQUATION1703 V1 EN
(Equation 51)
L2
*
2 2
3
L L
S U I
= × ×
EQUATION1704 V1 EN
(Equation 52)
L3
*
3 3
3
L L
S U I
= × ×
EQUATION1705 V1 EN
(Equation 53)
The function has two stages that can be set independently.
With the parameter OpMode1(2) the function can be set On / Off .
The function gives trip if the power component in the direction defined by the setting
Angle1(2) is larger than the set pick up power value Power1(2)
Section 6
1MRK 505 291-UEN A
Current protection
146
Application manual