ABB Relion 670 Series Commissioning Manual page 242

Section 11
Testing functionality by secondary injection
5. Set the injected voltage to 110% of the operate level in the tested stage, switch on the
current and check the time delay.
6. Check that all trip and pickup contacts operate according to the configuration (signal
matrices).
7. Finally check that pickup and trip information is stored in the event memory.
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.
11.11.7.7 Negative sequence overcurrent protection LCNSPTOC (46)
Prepare the IED for verification of settings as outlined in section
"Preparing for test"
I E D T E S T S E T
ANSI10000013 V1 EN-US
Figure 56: Connection of test equipment to the IED
1. Connect the test set for three-phase current injection to the appropriate IED terminals as
shown in Figure
2. Increase the injected current and note the operated value (pickup value) of the studied step
of the function.
3. Decrease the current slowly and note the reset value.
4. Connect a trip output contact to a timer.
5. Set the injected current to 200% of the operate level of the tested stage. Switch on the
current and check the time delay.
6. Check that all trip and pickup contacts operate according to the configuration (signal
matrices).
7. Finally check that pickup and trip information is stored in the event memory.
Completing the test
236
in this chapter.
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IC
56
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TESTMODE setting to Disabled .
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"Requirements"
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IED
ANSI10000013-1-en.vsd
Line distance protection REL670
1MRK 506 371-UUS E
and section
Commissioning manual