10. Inject the polarizing voltage 3U0 to about 110% of the setting (3U0>) and adjustthe phase angle between the voltage and current to (180°- AnglRCA) setting, thecurrent leads the voltage.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 forwarddirectional element.No ECHO and TRWEI should appear.14. Switch the current off and check that the ECHO, CS and TRWEI appear on thecorresponding binary output during 200ms after resetting the directionalelement. If EF4PTOC also operates in forward direction, CS should be obtained.15. Switch the polarizing voltage off and reset the CRL binary input.10.10.5.3 Completing the testContinue to test another function or end the test by changing the TestMode setting toOff. Restore connections and settings to their original values, if they were changed fortesting purposes.10.11 Logic10.11.1 Tripping logic, common 3-phase output SMPPTRCPrepare the IED for verification of settings outlined in section "Preparing the IED toverify settings".This function is functionality tested together with other protection functions (linedifferential protection,earth-fault overcurrent protection, and so on) within the IED. Itis 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.The instances of SMPPTRC are identical except for the name of the function blockSMPPTRC. The testing is preferably done in conjunction with the protection systemand autoreclosing function.10.11.1.1 Three-phase operating modeSection 10 1MRK 511 360-UEN ATesting functionality by secondary injection176 Bay control REC670 2.1 IECCommissioning manual
