ABB REL670 2.2 IEC - Page 529

Table 41: Complex power calculation
Set value Mode Formula used for complex power calculation
L1, L2, L3
* * *
1 1 2 2 3 3L L L L L L
S U I U I U I= × + × + ×
EQUATION1697 V1 EN-US (Equation 498)
Arone
* *
1 2 1 2 3 3L L L L L L
S U I U I= × - ×
EQUATION1698 V1 EN-US (Equation 499)
PosSeq
*
3
PosSeq PosSeq
S U I= × ×
EQUATION1699 V1 EN-US (Equation 500)
L1L2
* *
1 2 1 2
( )
L L L L
S U I I= × -
EQUATION1700 V1 EN-US (Equation 501)
L2L3
* *
2 3 2 3
( )
L L L L
S U I I= × -
EQUATION1701 V1 EN-US (Equation 502)
L3L1
* *
3 1 3 1
( )
L L L L
S U I I= × -
EQUATION1702 V1 EN-US (Equation 503)
L1
*
1 1
3
L L
S U I= × ×
EQUATION1703 V1 EN-US (Equation 504)
L2
*
2 2
3
L L
S U I= × ×
EQUATION1704 V1 EN-US (Equation 505)
L3
*
3 3
3
L L
S U I= × ×
EQUATION1705 V1 EN-US (Equation 506)
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 506 369-UEN B Section 9
Current protection
Line distance protection REL670 2.2 IEC 523
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