
10.5.4.1
Function revision history
GUID-E9710D3B-A55F-4CF1-8BF6-65CD9640A673 v1
Document
revision
Product
revision
History
A
2.2.1
-
B
2.2.1
-
C
2.2.2
-
D
2.2.3
-
E
2.2.3
-
F
2.2.4
-
G
2.2.4
-
H
2.2.4
-
J
2.2.4
-
K
2.2.5
•
The harmonic restraint function changed to freeze the definite and IDMT timers.
•
Modes
Forward
and
Reverse
were included in both the settings
DirMode1
and
DirMode2
.
•
Previously called setting
t2
had its name changed to
tDef2
for more clear
understanding.
10.5.4.2
Directional Stage
GUID-C5ED60B3-F931-4D3B-BCAB-3605EA9D45B4 v3
1.
Connect the test set for single current injection to the appropriate IED terminals.
Connect the injection current to terminals L1 and neutral.
2.
Set the injected polarizing voltage slightly larger than the set minimum polarizing voltage
(default 2% of Ur) and set the injection current to lag the voltage by an angle equal to the set
reference characteristic angle (
AngleRCA
), for the forward direction.
For reverse direction, set the injection current to lag the polarizing voltage by an angle equal to
RCA+ 180°.
3.
Increase the injected current and note the value at which the directional stage operates.
4.
Decrease the current slowly and note the reset value.
5.
If the test has been performed by injection of current in phase L1, repeat the test, injecting
current into terminal L2 with a polarizing voltage connected to terminal L2.
6.
Set the injected current to 200% of the operate level, switch on the current and check the time
delay.
7.
Check that all trip and start contacts operate according to the configuration (signal matrixes)
8.
Reverse the direction of the injected current and check that the stage operates accordingly.
9.
Check that the protection does not operate when the polarizing voltage is zero.
10.
Finally, check that start and trip information is stored in the event menu.
10.5.4.3
Two step non-directional earth fault protection
GUID-0651EAE0-3AA7-4023-A4F6-C89E0C835E10 v2
1.
, but without applying any polarizing voltage.
10.5.4.4
Completing the test
SEMOD53296-122 v5
Continue to test another function or end the test by changing the
TESTMODE
setting to
Off
. Restore
connections and settings to the original values, if changed for testing purposes.
1MRK 506 377-UEN Rev. K
Section 10
Testing functionality by secondary injection
Railway application RER670
103
Commissioning manual
© 2017 - 2021 Hitachi Power Grids. All rights reserved
Содержание Relion 670 series
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