ABB Relion 670 Series Commissioning Manual page 186

Section 11
Testing functionality by secondary injection
Table 38: Calculation modes
Set value:
L1, L2, L3
Arone
PosSeq
L1L2
L2L3
L3L1
L1
L2
L3
2. Adjust the injected current and voltage to the set values in % of
(converted to secondary current and voltage). The angle between the injected current
and voltage shall be set equal to the set direction
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
the monitored active power is equal to 0% of rated power and that the reactive power is
equal to 100% of rated power.
4. Change the angle between the injected current and voltage back to 0°. Decrease the
current slowly until the START1 signal, start of stage 1, is activated.
5. Increase the current to 100% of
6. Switch the current off and measure the time for activation of TRIP1, trip of stage 1.
7. If a second stage is used, repeat steps
180
Mode
Formula used for complex power calculation
=
S U
L
EQUATION1697 V1 EN-US
=
S U
L L
EQUATION1698 V1 EN-US
= ×
S 3 U
EQUATION1699 V1 EN-US
=
S U
L L
EQUATION1700 V1 EN-US
=
S U
L L
EQUATION1701 V1 EN-US
=
S U
L L
EQUATION1702 V1 EN-US
= ×
S 3 U
EQUATION1703 V1 EN-US
= ×
S 3 U
EQUATION1704 V1 EN-US
= ×
S 3 U
EQUATION1705 V1 EN-US
IBase .
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* *
× + × + ×
I U I U I
1 L 1 L 2 L 2 L 3
* *
× - ×
I U I
1 2 L 1 L L 2 3 L 3
*
×
I
PosSeq PosSeq
* *
× -
( I I )
1 2 L 1 L 2
* *
× -
( I I )
2 3 L 2 L 3
* *
× -
( I I )
3 1 L 3 L 1
*
×
I
L 1 L 1
*
×
I
L 2 L 2
*
×
I
L 3 L 3
Angle1 , angle for stage 1 (equal to 0° for
2 to 6 for the second stage.
1MRK 504 165-UEN E
*
L 3
(Equation 84)
(Equation 85)
(Equation 86)
(Equation 87)
(Equation 88)
(Equation 89)
(Equation 90)
(Equation 91)
(Equation 92)
IBase and UBase
Angle1 + 90°. Check that
Transformer protection RET670
Commissioning manual