ABB Relion 670 Series Commissioning Manual page 167

1MRK 506 371-UUS E
1. Connect the test set for single current injection to the appropriate IED terminals.
Connect the injection current to terminals A and neutral.
2. Set the injected polarizing voltage slightly larger than the set minimum polarizing voltage
(5% of Vn) and set the injection current to lag the voltage by an angle equal to the set
reference characteristic angle (
If reverse directional function is selected, set the injection current to lag the polarizing
voltage by an angle equal to RCA+ 180°.
3. Increase the injected current and note the value at which the studied step of the function
trips.
4. Decrease the current slowly and note the reset value.
5. If the test has been performed by injection of current in phase A, repeat the test, injecting
current into terminals B and C with a polarizing voltage connected to terminals B,
respectively C.
6. Block lower set steps when testing higher set steps according to the instructions that follow.
7. Connect a trip output contact to a timer.
8. Set the injected current to 200% of the trip level of the tested step, switch on the current and
check the time delay.
For inverse time curves, check the trip time at a current equal to 110% of the trip current for
txMin .
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.
11.5.4.2 Four step non-directional ground fault protection
1. Do as described in
polarizing voltage.
11.5.4.3 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.
11.5.5 Four step negative sequence overcurrent protection NS4PTOC
(46I2)
Prepare the IED for verification of settings as outlined in section
chapter.
Procedure
Line distance protection REL670
Commissioning manual
AngleRCA ), if the forward directional function is selected.
"Four step directional ground fault
When inverse time overcurrent characteristic is selected, the trip time of the stage
will be the sum of the inverse time delay and the set definite time delay. Thus, if
only the inverse time delay is required, it is important to set the definite time delay
for that stage to zero.
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Testing functionality by secondary injection
protection", but without applying any
TESTMODE setting to Disabled .
GUID-EB1A8DFD-5BAC-4024-ADA2-D9BE7A2B50A0 v2
"Preparing for test"
GUID-F7AA2194-4D1C-4475-8853-C7D064912614 v4
GUID-F973601F-BC67-4E4F-A4CA-BE6253E2FB92 v3
Section 11
SEMOD53296-202 v4
SEMOD53296-122 v4
in this
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