Completing The Test - ABB RET670 Commissioning Manual

Section 10
Testing functionality by secondary injection
For inverse time curves, check the trip time at a current equal to 110% of the trip current in
order to test parameter
9. Check that all trip and pickup contacts trip according to the configuration (signal matrixes)
10. Reverse the direction of the injected current and check that the step does not trip.
11. Check that the protection does not trip when the polarizing voltage is zero.
12. Repeat the above-described tests for the higher set steps.
13. Finally, check that pickup and trip information is stored in the event menu.
10.5.5.1

Completing the test

Continue to test another function or end the test by changing the
Restore connections and settings to their original values, if they were changed for testing
purposes.
10.5.6 Sensitive directional residual overcurrent and power protection
SDEPSDE (67N)
Prepare the IED for verification of settings as outlined in section
section "Preparing for test"
IED test set
ANSI09000021 V1 EN-US
Figure 35: Principle connection of the test set
Values of the logical signals belonging to the sensitive directional residual overcurrent and power
protection are available on the local HMI under Main menu/Test/Function status/Current
protection/SensDirResOvCurr(67N,IN>)/SDEPSDE(67N,IN>):x
10.5.6.1 Measuring the trip and time limit for set values
142
txmin .
in this chapter.
NI
V_A
V_B
V_C
V_N
"Requirements"
IED
NI
V1
V2
V3
V_N
TRIP
ANSI09000021-1-en.vsd
1MRK 504 154-UUS B
TestMode setting to Disabled .
and
Commissioning manual
SEMOD53296-122 v4
SEMOD175060-3 v7
SEMOD175060-12 v2