ABB REG670 Applications Manual page 390

Section 9
Current protection
384
Mode: The voltage and current used for the power measurement. The setting
possibilities are shown in table 42.
Table 42: Complex power calculation
Mode
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 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)
Generator protection REG670 2.2 IEC and Injection equipment REX060, REX061, REX062
Formula used for complex power calculation
* *
= × + ×
S U I U I
L 1 L 1 L 2 L 2
EQUATION1697 V1 EN
*
= × - ×
S U I U
L L 1 2 L 1 L L 2 3
EQUATION1698 V1 EN
*
= × ×
S 3 U I
PosSeq PosSeq
EQUATION1699 V1 EN
* *
= × -
S U ( I I )
L L 1 2 L 1 L 2
EQUATION1700 V1 EN
* *
= × -
S U ( I I )
L L 2 3 L 2 L 3
EQUATION1701 V1 EN
* *
= × -
S U ( I I )
L L 3 1 L 3 L 1
EQUATION1702 V1 EN
*
= × ×
S 3 U I
L 1 L 1
EQUATION1703 V1 EN
*
= × ×
S 3 U I
L 2 L 2
EQUATION1704 V1 EN
*
= × ×
S 3 U I
L 3 L 3
EQUATION1705 V1 EN
1MRK 502 071-UEN -
*
+ ×
U I
L 3 L 3
(Equation 226)
*
I
L 3
(Equation 227)
(Equation 228)
(Equation 229)
(Equation 230)
(Equation 231)
(Equation 232)
(Equation 233)
(Equation 234)
Application manual