11. Inject current in one phase to about 110% of the set operate current
(IN>Dir ).
12. Activate the CRL binary input.
No ECHO and TRWEI should appear.
13. Abruptly reverse the current to 65° lagging the voltage to operate the forward
directional element.
No ECHO and TRWEI should appear.
14. Switch the current off and check that the ECHO, CS and TRWEI appear on
the corresponding binary output during 200ms after resetting the directional
element. If EF4PTOC also operates in forward direction, CS should be
obtained.
15. Switch the polarizing voltage off and reset the CRL binary input.
9.9.5.3 Completing the test
M13936-90 v5
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.
9.10 Logic
SEMOD53577-1 v1
9.10.1 Tripping logic, common 3-phase output SMPPTRC
SEMOD54375-102 v10
Prepare the IED for verification of settings outlined in Section
"Preparing the IED
to verify settings".
This function is functionality tested together with other protection functions (line
differential protection, earth-fault overcurrent protection, and so on) within the
IED. It is recommended that the function is tested together with the autorecloser
function, when built into the IED or when a separate external unit is used for
reclosing purposes.
9.10.1.1 3 phase operating mode
SEMOD54375-106 v10
1. Check that AutoLock and TripLockout are both set to Off.
2. Initiate a three-phase fault.
1MRK 506 383-UEN A Section 9
Testing functionality by secondary injection
Line distance protection REL650 2.2 IEC 157
Commissioning manual
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