Completing The Test; Instantaneous Residual Overcurrent Protection Efpioc - ABB REG670 2.0 IEC Commissioning Manual

Section 12
Testing functionality by secondary injection
12.5.2.2
12.5.3
150
If reverse directional function is selected, set the injection current to lag the
polarizing voltage by an angle equal to 260° (equal to 80° + 180°).
4. Increase the injected current and note the operate value of the tested step of the
function.
5. Decrease the current slowly and note the reset value.
6. If the test has been performed by injection of current in phase L1, repeat the test,
injecting current into phases L2 and L3 with polarizing voltage connected to
phases L2, respectively L3 (1 out of 3 currents for operation).
7. If the test has been performed by injection of current in phases L1 – L2, repeat
the test, injecting current into phases L2 – L3 and L3 – L1 with the appropriate
phase angle of injected currents.
8. Block higher set stages when testing lower set stages by following the procedure
described below.
9. Connect a trip output contact to a timer.
10. Set the injected current to 200% of the operate level of the tested stage, 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 for txMin.
11. Check that all trip and start contacts operate according to the configuration
(signal matrixes)
12. Reverse the direction of the injected current and check that the protection does
not operate.
13. If 2 out of 3 or 3 out of 3 currents for operation is chosen: Check that the function
will not operate with current in one phase only.
14. Repeat the above described tests for the higher set stages.
15. Finally check that start and trip information is stored in the event menu.
Verification of the non-directional phase overcurrent function is
done as instructed above, without applying any polarizing
voltage.

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.

Instantaneous residual overcurrent protection EFPIOC

Prepare the IED for verification of settings outlined in section
section "Preparing for test"
To verify the settings the following fault type should be tested:
• Phase-to-earth fault
in this chapter.
1MRK502053-UEN B
"Requirements"
Generator protection REG670 2.0 IEC
Commissioning manual
and