ABB Relion 670 series - Page 557

Set value Mode Formula used for complex power calculation
BC
* *
( )
BC B C
S V I I= × -
EQUATION2059-ANSI V1 EN (Equation 489)
CA
* *
( )
CA C A
S V I I= × -
EQUATION2060-ANSI V1 EN (Equation 490)
A
*
3
A A
S V I= × ×
EQUATION2061-ANSI V1 EN (Equation 491)
B
*
3
B B
S V I= × ×
EQUATION2062-ANSI V1 EN (Equation 492)
C
*
3
C C
S V I= × ×
EQUATION2063-ANSI V1 EN (Equation 493)
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 506 369-UUS - Section 9
Current protection
Line distance protection REL670 2.2 ANSI 551
Application manual