Setting Guidelines - ABB Relion REC670 Applications Manual

1MRK 511 358-UEN A
Underpower protection
Operate
Line
Margin
Operating point
without
turbine torque
IEC09000019 V2 EN-US
Figure 70: Reverse power protection with underpower or overpower protection
7.12.3

Setting guidelines

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 21.
Table 21:
Set value
L1, L2, L3
Arone
PosSeq
L1L2
L2L3
L3L1
L1
L2
L3
Application manual
Overpower protection
Q
Operate
Line
Margin
P
Operating point
without
turbine torque
Complex power calculation
Mode
Q
P
IEC09000019-2-en.vsd
Formula used for complex power calculation
*
= × +
S U I U
L 1 L 1 L
EQUATION1697 V1 EN-US
*
= × -
S U I U
L L 1 2 L 1
EQUATION1698 V1 EN-US
= × ×
S 3 U I
PosSeq PosSeq
EQUATION1699 V1 EN-US
*
= × -
S U ( I
L L 1 2 L 1
EQUATION1700 V1 EN-US
*
= × -
S U ( I
L L 2 3 L 2
EQUATION1701 V1 EN-US
*
= × -
S U ( I
L L 3 1 L 3
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
* *
× + ×
I U I
2 L 2 L 3 L 3
(Equation 64)
*
×
I
L L 2 3 L 3
(Equation 65)
*
(Equation 66)
*
I )
L 2
(Equation 67)
*
I )
L 3
(Equation 68)
*
I )
L 1
(Equation 69)
(Equation 70)
(Equation 71)
(Equation 72)
Section 7
Current protection
SEMOD172134-4 v7
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