4. Activate BLOCK binary input and check that the outputs TEMPALM, TEMPLO,
ALARM and LOCKOUT disappear.
5.
Reset the BLOCK binary input.
6. Make sure that temperature lockout condition exists and then activate the
reset lock out input RESETLO and check that the outputs TEMPLO and
LOCKOUT reset.
11.13.1.3 Completing the test
GUID-DD08C598-A35C-4300-9555-A0877F7DC511 v1
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.
11.13.2 Liquid medium supervision SSIML
GUID-6426FDDA-B949-4FE7-BF42-B52014A9344B v3
Prepare the IED for verification of settings as outlined in section
"Preparing the
IED to verify settings" in this chapter.
V
alues of logical signals for SSIMG protection are available on the local HMI
under Main menu/Tests/Function status/Monitoring/InsulationLiquid(71)/
SSIML(71):x, where x = 1, 2,....4.
Check that the input logical signal BLOCK is logical zero and that on the local
HMI, the logical signals LVLALM, LVLLO, TEMPALM, TEMPLO, ALARM and
LOCKOUT are logical zero.
11.13.2.1 Testing the liquid medium supervision for level alarm and level
lockout conditions
GUID-C1F1E6CA-9512-4358-A4E7-84CC3698D156 v3
1. Connect the binary inputs to consider liquid level to initiate the alarms.
2. Consider the analogue level input SENLEVEL and set SENLEVEL to a value
lower than LevelAlmLimit or activate binary input signal SENLVLALM, check
that outputs LVLALM and ALARM are activated after a set time delay of
tLevelAlarm.
3. Liquid level lockout input SENLVLLO can be used to set LVLLO.
4. Also, reduce the liquid level input below LevelLOLimit or activate the binary
input signal SENLVLLO, check that LVLLO signal after a set time delay of
tLevelLockOut.
5. Activate BLOCK binary input and check that the outputs LVLALM, LVLLO,
ALARM and LOCKOUT disappears.
6. Reset the BLOCK binary input.
7. Make sure that level lockout condition exists and then activate the reset lock
out input RESETLO and check that the outputs PRESLO and LOCKOUT reset.
1MRK 505 378-UEN A Section 11
Testing functionality by secondary injection
Line differential protection RED670 2.2 IEC 261
Commissioning manual
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