Completing The Test; Current Protection; Instantaneous Phase Overcurrent Protection 3-Phase Output Phpioc; Measuring The Operate Limit Of Set Values - ABB rec670 Commissioning Manual

Section 10
Testing functionality by secondary injection
10.3.1.2
10.4
10.4.1
10.4.1.1
86
7. If used, measure the alarm level operating value. Increase the voltage and make
note of the operate value U>Alarm. This is done with manual test and without
trip of the test set.
8. Measure the operating time on the alarm output by connecting the stop of the test
set to an output from tAlarm. Inject a voltage 1.2 ˣ U>Alarm and measure the
alarm time.
9. Check that trip and alarm outputs operate according to the configuration logic.
10. Finally check that start and alarm information is stored in the event menu and if
a serial connection to the SA is available verify that the correct and only the
required signals are presented on the local HMI and on the SCADA system.
Information on how to use the event menu is found in the operator's
manual.

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.

Current protection

Instantaneous phase overcurrent protection 3-phase output
PHPIOC
Prepare the IED for verification of settings outlined in section
verify settings".
To verify the settings the following fault type should be tested:
• Phase-to-earth fault
Ensure that the maximum continuous current, supplied from the current source used
for the test of the IED, does not exceed four times the rated current value of the IED.

Measuring the operate limit of set values

1. Inject a phase current into the IED with an initial value below that of the setting.
2. Set the operation mode to 1 out of 3.
3. Increase the injected current in the Ln phase until the TRL (n=1–3) signal
appears.
4. Switch the fault current off.
1MRK 511 360-UEN A
"Preparing the IED to
Bay control REC670 2.1 IEC
Commissioning manual