ABB Relion 670 Series Commissioning Manual page 100

Section 10
Testing functionality by secondary injection
1. Connect the test set for injection of voltage and current corresponding to the mode to be used in
the application. If a three-phase test set is available this could be used for all the modes. If a single-
phase current/voltage test set is available the test set should be connected to a selected input for
one-phase current and voltage.
Table 18:
Set value: Mode
A, B, C
Arone
PosSeq
AB
BC
CA
A
B
C
2. Adjust the injected current and voltage to the set values in % of IBase and VBase (converted to
secondary current and voltage). The angle between the injected current and voltage shall be set
equal to the set direction Angle1, angle for stage 1 (equal to 0° for low forward power protection
94
Calculation modes
Formula used for complex power calculation
=
S V
A
EQUATION2055 V1 EN-US
=
S V
AB
EQUATION2056-ANSI V1 EN-US
= ×
S 3 V
EQUATION2057-ANSI V1 EN-US
=
S V
AB
EQUATION2058-ANSI V1 EN-US
=
S V
BC
EQUATION2059-ANSI V1 EN-US
=
S V
CA
EQUATION2060-ANSI V1 EN-US
= ×
S 3 V
EQUATION2061-ANSI V1 EN-US
= ×
S 3 V
EQUATION2062-ANSI V1 EN-US
= ×
S 3 V
EQUATION2063-ANSI V1 EN-US
© 2017 - 2022 Hitachi Energy. All rights reserved
* *
× + × + ×
I V I V I
A B B C C
* *
× - ×
I V I
A BC C
*
×
I
PosSeq PosSeq
* *
× -
( I I )
A B
* *
× -
( I I )
B C
* *
× -
( I I )
C A
*
×
I
A A
*
×
I
B B
*
×
I
C C
1MRK 505 372-UUS Rev. K
*
Busbar protection REB670
Commissioning manual
(Equation 4)
(Equation 5)
(Equation 6)
(Equation 7)
(Equation 8)
(Equation 9)
(Equation 10)
(Equation 11)
(Equation 12)