Completing The Test; Sensitive Directional Residual Overcurrent And Power Protection Sdepsde - ABB Relion 670 Series Commissioning Manual

Section 11
Testing functionality by secondary injection
4. Increase the injected current and note the value at which the studied step of the function
operates.
5. Decrease the current slowly and note the reset value.
6. Block lower set steps when testing higher set steps according to the instructions that
follow.
7. Connect a trip output contact to a timer.
8. Set the injected current to 200% of the operate level of the tested step, switch on the
current and check the time delay.
For inverse time curves, check the operate time at a current equal to 110% of the operate
current in order to test parameter
9. Check that all operate and start contacts operate according to the configuration (signal
matrixes)
10. Reverse the direction of the injected current and check that the step does not operate.
11. Check that the protection does not operate when the polarizing voltage is zero.
12. Repeat the above-described tests for the higher set steps.
13. Finally, check that start and trip information is stored in the event menu.
11.4.5.1

Completing the test

continue to test another function or end the test by changing the
Restore connections and settings to their original values, if they were changed for testing
purposes.
11.4.6 Sensitive directional residual overcurrent and power
protection SDEPSDE
Prepare the IED for verification of settings as outlined in section
section
IED test set
IEC09000021 V2 EN-US
Figure 23: Principle connection of the test set
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
98
"Preparing for test" in this chapter.
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L2U
L3U
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© Copyright 2017 ABB. All rights reserved
txmin .
IED
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U2
U3
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TRIP
IEC09000021-2-en.vsd
1MRK 511 403-UEN E
SEMOD53296-122 v4
TESTMODE setting to Off .
SEMOD175060-3 v7
"Requirements" and
Bay control REC670
Commissioning manual