ABB Relion 670 series, Applications Manual

Page: 463 / 760

8.12.3 Setting guidelines
SEMOD172150-4 v7
GlobalBaseSel: Selects the global base value group used by the function to define (IBase),
(
UBase) and (SBase).
Operation: With the parameter Operation the function can be set On/Off.
Mode: The voltage and current used for the power measurement. The setting possibilities are
shown in table 40 .
Table 40: 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-US
(Equation 521)
Arone
* *
1 2 1 2 3 3 L L L L L L
S U I U I
= × - ×
EQUATION1698 V1 EN-US
(Equation 522)
PosSeq
*
3
PosSeq PosSeq
S U I
= × ×
EQUATION1699 V1 EN-US
(Equation 523)
L1L2
* *
1 2 1 2
( )
L L L L
S U I I
= × -
EQUATION1700 V1 EN-US
(Equation 524)
L2L3
* *
2 3 2 3
( )
L L L L
S U I I
= × -
EQUATION1701 V1 EN-US
(Equation 525)
L3L1
* *
3 1 3 1
( )
L L L L
S U I I
= × -
EQUATION1702 V1 EN-US
(Equation 526)
L1
*
1 1
3
L L
S U I
= × ×
EQUATION1703 V1 EN-US
(Equation 527)
L2
*
2 2
3
L L
S U I
= × ×
EQUATION1704 V1 EN-US
(Equation 528)
L3
*
3 3
3
L L
S U I
= × ×
EQUATION1705 V1 EN-US
(Equation 529)
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)
1MRK 505 343-UEN B Section 8
Current protection
457
Application manual