ABB REG670 - Setting Guidelines

Underpower protection
Overpower protection
Q Q
P P
Operating point
without
turbine torque
Margin Margin
Operate
Line
Operate
Line
Operating point
without
turbine torque
IEC09000019-2-en.vsd
IEC09000019 V2 EN
Figure 195: Reverse power protection with underpower or overpower protection
9.10.3 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
41.
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 (Equation 213)
Arone
* *
1 2 1 2 3 3L L L L L L
S U I U I= × - ×
EQUATION1698 V1 EN (Equation 214)
PosSeq
*
3
PosSeq PosSeq
S U I= × ×
EQUATION1699 V1 EN (Equation 215)
L1L2
* *
1 2 1 2
( )
L L L L
S U I I= × -
EQUATION1700 V1 EN (Equation 216)
L2L3
* *
2 3 2 3
( )
L L L L
S U I I= × -
EQUATION1701 V1 EN (Equation 217)
L3L1
* *
3 1 3 1
( )
L L L L
S U I I= × -
EQUATION1702 V1 EN (Equation 218)
Table continues on next page
Section 9 1MRK 502 071-UEN -
Current protection
378 Generator protection REG670 2.2 IEC and Injection equipment REX060, REX061, REX062
Application manual