Completing The Test; Impedance Protection; Distance Protection Zones, Quadrilateral And Mho Characteristic Zmfpdis - ABB Relion 650 Series Commissioning Manual

1MRK 505 395-UEN Rev. G
7. Repeat points 3– 6 for phases L2 and L3.
8. Inject symmetrical phase voltages equal to the rated voltage.
9. Decrease the injected phase-phase voltage L1-L2 and note the operated value (start value) of
the function.
10. Increase the voltage slowly and note the reset value.
11. Connect a trip output contact to a timer.
12. Reduce the injected voltage stepwise to 90 % of the operate level, and check the time delay.
13. Repeat points 9 – 12 for phases L2-L3 and L3-L1.
Zero sequence overcurrent criteria
Procedure
1. Connect the test set for three phase voltage injection (L1, L2, L3) or residual voltage injection
(N) to the appropriate IED terminals. This is dependent on how the IED is fed from the CT .
2. Increase the injected zero sequence current and note the operate value (start value) of the
studied step of the function.
3. Decrease the current slowly and note the reset value.
4. Connect a trip output contact to a timer.
5. Set the injected current to 200 % of the operate level of the tested stage, switch on the current
and check the time delay.
Low current criteria
Procedure
1. Connect the test set for three phase current injection to the appropriate IED terminals.
2. Inject a symmetrical three phase current larger than the set value IUC<
3. Decrease the injected current in phase L1 and note the operate value (start value) of the
studied step of the function.
4. Increase the current slowly and note the reset value.
5. Connect a trip output contact to a timer.
6. Decrease the injected current stepwise to 50 % of the operate level and check the time delay.
7. Repeat steps 3 – 6 for phases L2 and L3.
9.3.2.2

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.
9.4

Impedance protection

9.4.1 Distance protection zones, quadrilateral and mho characteristic
ZMFPDIS
Prepare the IED for verification of settings outlined in section
for test"
Line differential protection RED650
Commissioning manual
in this chapter.
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Testing functionality by secondary injection
GUID-27C0852A-008D-4107-8346-AB6A85043B7E v2
GUID-64C0F94F-5DC8-476C-B8B5-2B80F2B42692 v2
GUID-BE74F565-7465-4300-B2A6-D99CE8844147 v2
GUID-DF1650F4-EC3E-402B-BE26-EF2EF1034237 v8
"Requirements" and section
Section 9
SEMOD53525-1 v2
"Preparing
63