A three-phase trip should occur and all trip outputs TRL1, TRL2, TRL3 should
be activated. Functional outputs TRIP and TR3P should be active at each fault.
The output CLLKOUT should not be set.
7. Activate the automatic lockout function, set AutoLock = On and repeat.
Besides the TRIP outputs, CLLKOUT should be set.
8. Reset the lockout signal by activating the reset lockout (RSTLKOUT) signal.
9. Activate the trip signal lockout function, set TripLockout = On and repeat.
All trip outputs (TRL1, TRL2, TRL3) and functional outputs TRIP and TR3P
must be active and stay active after each fault, CLLKOUT should be set.
10. Reset the lockout.
All functional outputs should reset.
11. Deactivate the TRIP signal lockout function, set TripLockout = Off and the
automatic lockout function, set AutoLock = Off.
10.12.1.5 Completing the test
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.
10.13 Monitoring
10.13.1 Gas medium supervision SSIMG
Prepare the IED for verification of settings as outlined in section
"Testing the liquid
medium supervision for alarm and lock out conditions" and section "Completing the
test" in this chapter.
Check that the input logical signal BLOCK is logical zero and that on the local HMI,
the logical signals PRES_ALM, PRES_LO, TEMP_ALM and TEMP_LO are equal to
logical zero.
10.13.1.1 Testing the liquid medium supervision for alarm and lock out conditions
1. Connect binary inputs to consider gas pressure and gas density to initiate the
alarms.
2. Consider the analogue pressure input PRESSURE to initiate the alarms.
3. Gas pressure lock out input can be used to set PRES_LO signal, check the signal
status in local HMI under Main menu/Test/Function status/Monitoring/Gas
medium supervision SSIMG/PRES_LO
4. Reduce the pressure level input below PresAlmLimit, check for PRES_ALM
signal status in local HMI under Main menu/Test/Function status/
Monitoring/Gas medium supervision SSIMG/PRES_ALM
5. Activate BLOCK binary input, the signals PRES_ALM, PRES_LO should
disappear.
1MRK 506 355-UEN A Section 10
Testing functionality by secondary injection
Line distance protection REL670 2.1 IEC 233
Commissioning manual