Checking The Operation Of The Du/Dt And Di/Dt Based Function; Completing The Test; Voltage Based Delta Supervision Delvspvc; Verifying The Signals And Settings - ABB RER670 Commissioning Manual

Section 10
Testing functionality by secondary injection
10.8.2.3
10.8.2.4
10.8.3
10.8.3.1
126
4. Apply two-phase currents with their rated value and zero voltages.
5. Decrease the measured current in both phases until the DLD2PH signal
appears.
6. This is the point at which the dead line condition is detected. Check the value
of the decreased current with the set value IDLD< (IDLD< is in percent of
the base current IBase).

Checking the operation of the du/dt and di/dt based function

Check the operation of the du/dt and di/dt based function if included in the IED.
1. Simulate normal operating conditions with the two-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 phases simultaneously.
The voltage change must be higher than the set value DU> and the current
change must be lower than the set value DI<.
The BLKU and BLKZ signals appear without any time delay.
3. Apply normal conditions as in step
The BLKU and BLKZ signals should reset, if activated, see step
4. Change the voltages and currents in all phases simultaneously.
The voltage change must be higher than the set value DU> and the current
change must be higher than the set value DI<.
The BLKU and BLKZ signals should not appear.
5. Repeat step 2.
6. Connect the rated voltages in all phases and feed a current below the operate
level in all phases.
7. Keep the current constant. Disconnect the voltage in both two phases
simultaneously.
The BLKU and BLKZ signals should not appear.

Completing the test

Continue to test another function or end the test by changing the TestMode setting
to Off. Restore connections and settings to their original values, if they were
changed for testing purposes.

Voltage based delta supervision DELVSPVC

Prepare the IED for verification of settings outlined in Section
to verify settings".

Verifying the signals and settings

Make sure that the function is connected to SMAI function with U2P signal.
GUID-102B7334-0E33-45AE-A353-869ED527770A v2
1
GUID-E265B56C-4064-40DD-A39C-26CBE54F6227 v1
GUID-FBFEC9C5-1B76-4688-A00D-9EEB33326966 v1
"Preparing the IED
GUID-B05EE7E5-2360-4036-991A-00747C47A625 v2
Railway application RER670 2.2 IEC
1MRK 506 377-UEN C
1 and 2.
Commissioning manual