ABB REQ650 1.3 IEC, Commissioning Manual

Page: 83 / 124

1. Simulate normal operating conditions with the three-phase currents in phase with their
corresponding phase voltages and with all of them equal to their rated values.
2. Change the voltages and currents in all three phases simultaneously.
The voltage change must be greater than the set value for
DU> and the current change
must be less than the set value for
DI<.
• The BLKU and BLKZ signals appear without any time delay. The BLKZ signal will be
activated only if the internal deadline detection is not activated at the same time.
• 3PH should appear after 5 seconds, if the remaining voltage levels are lower than
the set
UDLD< of the DLD function.
3. Apply normal conditions as in step 1 .
The BLKU, BLKZ and 3PH signals should reset, if activated, see step 1 and 2 .
4. Change the voltages and currents in all three phases simultaneously.
The voltage change must be greater than the set value for
DU> and the current change
must be more than the set value for
DI<.
The BLKU, BLKZ and 3PH signals should not appear.
5. Repeat step 2 .
6. Connect the nominal voltages in all three phases and feed a current below the operate
level in all three phases.
7. Keep the current constant. Disconnect the voltage in all three phases simultaneously.
The BLKU, BLKZ and 3PH signals should not appear.
8. Change the magnitude of the voltage and current for phase 1 to a value greater than the
set value for DU> and DI<.
9. Check that the start output signals STDUL1 and STDIL1 and the general start signals
STDU or STDI are activated.
10. Check that the start output signals for the current and voltage phases 2 and 3 are
activated by changing the magnitude of the voltage and current for phases 2 and 3.
7.6.2.5 Completing the test
M1405-130 v5
Continue to test another function or end the testing by setting the parameter
TestMode to Off
under Main menu/Tests/IED test mode/TESTMODE:1. If another function is tested, then set
the parameter Blocked to No under Main menu/Tests/Function test modes/Secondary
system supervision/SDDRFUF/SDDRFUF:1 for the function, or for each individual function in a
chain, to be tested next. Remember to set the parameter
Blocked to Yes, for each individual
function that has been tested.
7.7 Testing control functions
GUID-9B5BDD59-F6F5-41C6-913B-0AFEB0779290 v3
During periods of frequent counter state/value changes, if the auxiliary power
to the IED is interrupted, it is possible that this information will be lost.
7.7.1 Synchrocheck, energizing check, and synchronizing SESRSYN
M2377-3 v9.1.1
This section contains instructions on how to test the synchrocheck, energizing check, and
synchronizing function SESRSYN for single, double and 1½ breaker arrangements.
This section contains instructions on how to test the synchrocheck and energizing check for
single CB with or without the synchronizing function.
Prepare the IED for verification of settings as outlined in section Preparing the IED to verify
settings .
1MRK 505 293-UEN B Section 7
Testing functionality
Breaker protection REQ650 77
Commissioning manual
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