ABB Relion 670 Series Commissioning Manual page 238

Section 11
Testing functionality by secondary injection
11. Check that the line impedance (R1 and X1) and reactor impedance (Xc) are set to the correct
values.
12. Inject symmetrical phase voltages equal to the rated voltage.
13. Increase the injected current (same phase angle as the injected voltage) in phase A from zero
and note the operated value (pickup value) of the function. Check that this value is equal to:
=
V
14. Repeat step 13 for phases B and C.
15. Set
16. Connect the test set for three-phase current injection and three-phase voltage to the
appropriate IED terminals.
17. Inject symmetrical phase voltages equal to the rated voltage.
18. Increase the injected voltage in phase A and note the operated value (pickup value) of the
function.
19. Decrease the voltage slowly and note the reset value.
20. Connect a trip output contact to a timer.
21. Increase stepwise the injected voltage to 110% of the operate level, and check the time delay.
22. Check that all trip and pickup contacts operate according to the configuration (signal
matrices).
23. Finally check that pickup and trip information is stored in the event memory. Repeat steps 17
– 22 for phases B and C.
If voltage compensation will be used do the following steps:
24. Set
25. Check that the line impedance (R1 and X1) and reactor impedance (Xc) are set to the correct
values.
26. Inject symmetrical phase voltages equal to 120% of the rated voltage.
27. Increase the injected current (same phase angle as the injected voltage) in phase A from zero
and note the operated value (pickup value) of the function. Check that this value is equal to:
=
V
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.
11.11.7.3 Sudden change in current variation SCCVPTOC (51)
Prepare the IED for verification of settings as outlined in section
"Preparing for test"
1. Set
2. Connect the test set for three-phase current injection to the appropriate IED terminals.
3. Inject symmetrical phase currents equal to half the rated current.
4. Increase the injected current in phase A slowly by more than the set
be activated.
5. Decrease the injected current in phase A to half the rated current.
6. Increase the injected current in phase A in a step by more than the set
trip signal shall be activated.
232
[
V
injected
V - I - j
injected
injected
X
xy
OperationOV to Enabled .
EnShuntReactor to Enabled and activate input signal SWIPOS.
[
V
injected
V - I - j
injected injected
X
xy
in this chapter.
Operation to Enabled .
© Copyright 2017 ABB. All rights reserved
]
V
· ( )
injected
+ jX
R
+ j
L
L
X
cp
]
V
· ( )
injected
+ jX
R
+ j
L
L
X
cp
1MRK 506 371-UUS E
TESTMODE setting to Disabled .
GUID-5494DF56-449D-49BE-B75D-9C667E890E16 v1
"Requirements" and section
IPickup . No signal shall
IPickup . Pickup and
Line distance protection REL670
Commissioning manual