Setting Guidelines - ABB REC670 Applications Manual

1MRK 511 401-UEN A
8.12.3
Bay control REC670 2.2 IEC
Application manual

Setting guidelines

GlobalBaseSel: Selects the global base value group used by the function to define
IBase, UBase and SBase as applicable.
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 26.
Table 26: Complex power calculation
Set value Mode
L1, L2, L3
Arone
PosSeq
L1L2
L2L3
L3L1
L1
L2
L3
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 smaller than the set pick up power value Power1(2)
Current protection
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
Section 8
SEMOD172134-4 v7
*
+ ×
U I
L 3 L 3
(Equation 64)
*
I
L 3
(Equation 65)
(Equation 66)
(Equation 67)
(Equation 68)
(Equation 69)
(Equation 70)
(Equation 71)
(Equation 72)
205