Table 33:
Complex power calculation
Set value
Mode
Formula used for complex power calculation
A, B, C
*
*
*
A
A
B
B
C
C
S V
I
V
I
V
I
=
×
+
×
+
×
EQUATION2055-ANSI V1 EN-US
(Equation 42)
Arone
*
*
AB
A
BC
C
S V
I
V
I
=
×
-
×
EQUATION2056-ANSI V1 EN-US
(Equation 43)
PosSeq
*
3
PosSeq
PosSeq
S
V
I
= ×
×
EQUATION2057-ANSI V1 EN-US
(Equation 44)
AB
*
*
(
)
AB
A
B
S V
I
I
=
×
-
EQUATION2058-ANSI V1 EN-US
(Equation 45)
BC
*
*
(
)
BC
B
C
S V
I
I
=
×
-
EQUATION2059-ANSI V1 EN-US
(Equation 46)
CA
*
*
(
)
CA
C
A
S V
I
I
=
×
-
EQUATION2060-ANSI V1 EN-US
(Equation 47)
A
*
3
A
A
S
V
I
= ×
×
EQUATION2061-ANSI V1 EN-US
(Equation 48)
B
*
3
B
B
S
V
I
= ×
×
EQUATION2062-ANSI V1 EN-US
(Equation 49)
C
*
3
C
C
S
V
I
= ×
×
EQUATION2063-ANSI V1 EN-US
(Equation 50)
The function has two stages that can be set independently.
With the parameter
OpMode1(2)
the function can be set
Enabled
/
Disabled
.
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)
1MRK 505 370-UUS A
Section 7
Current protection
Busbar protection REB670 2.2 ANSI
225
Application manual
Summary of Contents for RELION REB670
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