Identification - ABB REL650 Applications Manual

Section 7
Current protection
7.15.2.1
7.15.2.2
244

Identification

Function description
Directional overpower protection
Setting guidelines
GlobalBaseSel: Selects the global base value group used by the function to define (IBase),
(VBase) and (SBase).
Operation: With the parameter Operation the function can be set Enabled/Disabled.
Mode: The voltage and current used for the power measurement. The setting possibilities
are shown in table 14.
For reverse power applications PosSeq or Arone modes are strongly recommended.
Table 14: Complex power calculation
Set value Mode
A,B,C
Arone
PosSeq
A,B
B,C
C,A
Table continues on next page
IEC 61850 IEC 60617
identification identification
GOPPDOP
P >
2
DOCUMENT172362-IMG158942
V2 EN
Formula used for complex power calculation
*
= × +
S V I V
A A
EQUATION2038 V1 EN
*
-
= ×
S V I
A
AB
EQUATION2039 V1 EN
= × ×
S 3 V I
PosSeq PosSeq
EQUATION2040 V1 EN
*
-
= ×
S V (I
A
AB
EQUATION2041 V1 EN
*
-
= ×
S V (I
BC B
EQUATION2042 V1 EN
*
-
= ×
S V (I
C
CA
EQUATION2043 V1 EN
1MRK 506 334-UUS A
ANSI/IEEE C37.2
device number
32
* *
× + ×
I V I
B B C C
(Equation 142)
*
×
V I
C
BC
(Equation 143)
*
(Equation 144)
*
)
I
B
(Equation 145)
*
)
I
C
(Equation 146)
*
)
I
A
(Equation 147)
Application manual