ABB Relion 670 series - Page 563

Table 41: Complex power calculation
Set value Mode Formula used for complex power calculation
A,B,C
* * *
A B C
A B C
S V I V I V I= × + × + ×
EQUATION2038 V1 EN (Equation 498)
Arone
* *
A C
AB BC
S V I V I= × ×-
EQUATION2039 V1 EN (Equation 499)
PosSeq
*
PosSeq
PosSeq
S 3 V I= × ×
EQUATION2040 V1 EN (Equation 500)
A,B
*
A B
AB
*
S V (I I )= × -
EQUATION2041 V1 EN (Equation 501)
B,C
*
B C
BC
*
S V (I I )= × -
EQUATION2042 V1 EN (Equation 502)
C,A
*
C A
CA
*
S V (I I )= × -
EQUATION2043 V1 EN (Equation 503)
A
*
A
A
S 3 V I= × ×
EQUATION2044 V1 EN (Equation 504)
B
*
B
B
S 3 V I= × ×
EQUATION2045 V1 EN (Equation 505)
C
*
C
C
S 3 V I= × ×
EQUATION2046 V1 EN (Equation 506)
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 larger than the set pick up power value Power1(2)
1MRK 506 369-UUS - Section 9
Current protection
Line distance protection REL670 2.2 ANSI 557
Application manual