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1MRK 506 377-UEN Rev. L
Document
revision
H
J
K
10.5.4.2
Directional Stage
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
1.
Do as described in
10.5.4.4
Completing the test
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.
10.5.5
Sensitive directional residual overcurrent and power protection
SDEPSDE
Prepare the IED for verification of settings outlined in Section
Values of the logical signals belonging to the sensitive directional residual overcurrent and power
protection are available on the local HMI under Main menu /Test /Function status /Current
protection /SensDirResOvCurr(67N,IN>) /SDEPSDE(67N,IN>):x
10.5.5.1
Measuring the operate and time limit for set values
Railway application RER670
Commissioning manual
Product
History
revision
2.2.4
-
2.2.4
-
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.
Directional
Stage, but without applying any polarizing voltage.
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Testing functionality by secondary injection
GUID-C5ED60B3-F931-4D3B-BCAB-3605EA9D45B4 v3
GUID-0651EAE0-3AA7-4023-A4F6-C89E0C835E10 v2
"Preparing the IED to verify
Section 10
SEMOD53296-122 v5
SEMOD175060-3 v7
settings".
SEMOD175060-12 v2
103
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