Hitachi Relion 670 Series Commissioning Manual page 176

Section 11
Testing functionality by secondary injection
Table 39:
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
and equal to 180° for reverse power protection). Check that the monitored active power is equal to
100% of rated power and that the reactive power is equal to 0% of rated power.
3. Change the angle between the injected current and voltage to Angle1 + 90°. Check that the
monitored active power is equal to 0% of rated power and that the reactive power is equal to 100%
of rated power.
170
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
PosSeq
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
C
EQUATION2063-ANSI V1 EN-US
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* * *
× + × + ×
I V I V I
A B B C C
* *
× - ×
I V I
A BC C
*
×
I
PosSeq
* *
× -
( I I )
A B
* *
× -
( I I )
B C
* *
× -
( I I )
C A
*
×
I
A A
*
×
I
B B
*
×
I
C
1MRK506371-UUS Rev. M
(Equation 80)
(Equation 81)
(Equation 82)
(Equation 83)
(Equation 84)
(Equation 85)
(Equation 86)
(Equation 87)
(Equation 88)
Line distance protection REL670
Commissioning manual