ABB RED670 Commissioning Manual page 188
Line differential protection
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Also See for RED670:
- Commissioning manual (308 pages) ,
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Section 11
Testing functionality by secondary injection
Set value: Mode
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.
4.
Change the angle between the injected current and voltage back to 0°. Decrease the current slowly
until the PICKUP1 signal, pickup of stage 1, is activated.
5.
Increase the current to 100% of IBase.
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
11.5.12.2
Completing the test
Continue to test another function or end the test by changing the TESTMODE setting to Disabled.
Restore connections and settings to the original values, if changed for testing purposes.
11.5.13
Directional overpower protection GOPPDOP (32)
Prepare the IED for verification of settings as outlined in section
for test"
in this chapter.
182
Formula used for complex power calculation
=
×
S
V
(
I
AB
A
EQUATION2058-ANSI V1 EN-US
=
×
S
V
(
I
BC
EQUATION2059-ANSI V1 EN-US
=
×
S
V
(
I
CA
C
EQUATION2060-ANSI V1 EN-US
= ×
×
S
3
V
I
A
EQUATION2061-ANSI V1 EN-US
= ×
×
S
3
V
I
B
EQUATION2062-ANSI V1 EN-US
*
= ×
×
S
3
V
I
C
C
EQUATION2063-ANSI V1 EN-US
2
© 2017 - 2021 Hitachi Power Grids. All rights reserved
*
*
-
I
)
B
*
*
-
I
)
B
C
*
*
-
I
)
A
*
A
*
B
to
6
for the second stage.
"Requirements"
1MRK 505 378-UUS Rev. J
(Equation 86)
(Equation 87)
(Equation 88)
(Equation 89)
(Equation 90)
(Equation 91)
SEMOD175027-15 v4
SEMOD175058-3 v5
and section
"Preparing
Line differential protection RED670
Commissioning manual
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