ABB RELION 650 SERIES, Руководство по вводу в эксплуатацию

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1. Connect the test set for current injection to the appropriate IED phases.
If there is any configuration logic that is used to enable or block any of the four available
overcurrent steps, make sure that the step under test is enabled (for example, end fault
protection).
If
1 out of 3 currents are chosen for operation: Connect the injection current to phases L1
and neutral.
If
2 out of 3 currents are chosen for operation: Connect the injection current into phase L1
and out from phase L2.
If 3 out of 3 currents are chosen for operation: Connect the symmetrical three-phase
injection current into phases L1, L2 and L3.
2. Connect the test set for the appropriate three-phase voltage injection to the IED phases
L1, L2 and L3. The protection shall be fed with a symmetrical three-phase voltage.
3. Block higher set stages when testing lower set stages by following the procedure
described below:
3.1. Set the injected polarizing voltage larger than the set minimum polarizing voltage
(default is 5% of
UBase) and set the injection current to lag the appropriate voltage
by an angle of about 80° if forward directional function is selected.
If
1 out of 3 currents are chosen for operation: The voltage angle of phase L1 is the
reference.
If
2 out of 3 currents are chosen for operation: The phase angle of the phase-to-
phase voltage L1L2 is the reference for L1Phase.
If
3 out of 3 currents are chosen for operation: The voltage angle of phase L1 is the
reference.
If reverse directional function is selected, set the injection current to lag the
polarizing voltage by an angle equal to 260° (equal to 80° + 180°).
3.2. Increase the injected current, note the operate value of the tested step of the
function and compare it to the set value.
3.3. Decrease the current slowly, note the reset value and compare it to the reset ratio
95%.
4. If the test has been performed by injection of current in phase L1, repeat the test,
injecting current into phases L2 and L3 with polarizing voltage connected to phases L2,
respectively L3 ( 1 out of 3 currents for operation).
5. If the test has been performed by injection of current in phases L1 – L2, repeat the test,
injecting current into phases L2 – L3 and L3 – L1 with the appropriate phase angle of
injected currents.
6. Connect a trip output contact to a timer.
7. Set the injected current to 200% of the operate level of the tested stage, switch on the
current and check the time delay.
For inverse time curves, check the operate time at a current equal to 110% of the operate
current for txMin.
8. Check that all operate and start contacts operate according to the configuration (signal
matrixes).
9. Reverse the direction of the injected current and check that the protection does not
operate.
10. If
2 out of 3 or 3 out of 3 currents are chosen for operation: Check that the function will
not operate with current in one phase only.
11. Repeat the above described tests for the higher set stages.
12. Check that start and trip information is stored in the event menu .
9.3.2.2 Completing the test
SEMOD56287-118 v4
continue to test another function or end the test by changing the TESTMODE setting to Off.
Restore connections and settings to their original values, if they were changed for testing
purposes.
Section 9 1MRK 505 385-UEN C
Testing functionality by secondary injection
62 Breaker protection REQ650
Commissioning manual
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