ABB Relion 670 Series Applications Manual page 200

Section 8
Current protection
8.13.3 Setting guidelines
GlobalBaseSel : Selects the global base value group used by the function to define IBase , UBase
SBase . Note that this function will only use IBase value.
and
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 28.
Table 28: Complex power calculation
Set value
L1, L2, L3
Arone
PosSeq
L1L2
L2L3
L3L1
L1
L2
L3
The function has two stages that can be set independently.
With the parameter
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)
194
Mode
OpMode1(2) the function can be set On / Off .
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Formula used for complex power calculation
* *
= × + ×
S U I U I
L 1 L 1 L 2 L 2
EQUATION1697 V1 EN-US
*
= × - ×
S U I U
L L 1 2 L 1 L L 2 3
EQUATION1698 V1 EN-US
*
= × ×
S 3 U I
PosSeq PosSeq
EQUATION1699 V1 EN-US
* *
= × -
S U ( I I )
L L 1 2 L 1 L 2
EQUATION1700 V1 EN-US
* *
= × -
S U ( I I )
L L 2 3 L 2 L 3
EQUATION1701 V1 EN-US
* *
= × -
S U ( I I )
L L 3 1 L 3 L 1
EQUATION1702 V1 EN-US
*
= × ×
S 3 U I
L 1 L 1
EQUATION1703 V1 EN-US
*
= × ×
S 3 U I
L 2 L 2
EQUATION1704 V1 EN-US
*
= × ×
S 3 U I
L 3 L 3
EQUATION1705 V1 EN-US
1MRK 511 401-UEN Rev. K
SEMOD172150-4 v7
*
+ ×
U I
L 3 L 3
(Equation 82)
*
I
L 3
(Equation 83)
(Equation 84)
(Equation 85)
(Equation 86)
(Equation 87)
(Equation 88)
(Equation 89)
(Equation 90)
Bay control REC670
Application manual