Completing The Test; Sensitive Directional Residual Overcurrent And Power Protection Sdepsde - ABB Relion 670 Series Installation And Commissioning Manual

1MRK 502 029-UEN A
15.6.5.1
15.6.6
Installation and commissioning manual
10. Reverse the direction of the injected current and check that the step does not
operate.
11. Check that the protection does not operate when the polarizing voltage is zero.
12. Repeat the above-described tests for the higher set steps.
13. Finally, check that start and trip information is stored in the event menu.

Completing the test

Continue to test another function or end the test by changing the Test mode setting
to Off. Restore connections and settings to their original values, if they were
changed for testing purposes.
Sensitive directional residual overcurrent and power
protection SDEPSDE
Prepare the IED for verification of settings outlined in section
section "Preparing for test"
Figure 93 shows the principal connection of the test set during the test of the
sensitive directional residual overcurrent protection. Observe that the polarizing
voltage is equal to -3U
0
IED test set
NI
L1U
L2U
L3U
NU
IEC09000021 V2 EN
Figure 93: Principle connection of the test set
Values of the logical signals belonging to the sensitive directional residual
overcurrent protection are available on the local HMI under Main menu/Test/
Verifying settings by secondary injection
in this chapter.
.
NI
U1
U2
U3
NU
TRIP
IEC09000021-2-en.vsd
Section 15
"Overview"
IED
and
173