Hitachi Relion 670 Series Commissioning Manual page 244

Section 11
Testing functionality by secondary injection
11.13.1.4 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.
11.13.2 Liquid medium supervision SSIML
Prepare the IED for verification of settings as outlined in section
this chapter.
Values of logical signals for SSIML protection are available on the local HMI under Main menu /Test /
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 Function revision history
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11.13.2.2 Testing the liquid medium supervision for level alarm and level lockout
conditions
1. Connect the binary inputs to consider liquid level to initiate the alarms.
2. Activate the binary input SENLEVELQ.
3. 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.
4. Liquid level lockout input SENLVLLO can be used to set LVLLO.
5. Ensure that binary input SENLEVELQ is activated and 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.
6. Activate BLOCK binary input and check that the outputs LVLALM, LVLLO, ALARM and LOCKOUT
disappears.
7. Reset the BLOCK binary input.
8. Ensure that level lockout condition exists and then activate the reset lockout input RESETLO and
check that the outputs PRESLO and LOCKOUT reset.
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Product History
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2.2.1 -
2.2.1 -
2.2.2 -
2.2.3 -
2.2.3 -
2.2.4 -
2.2.4 Binary quality inputs SENLVLQ and SENTEMPQ have been added for pressure and
temperature sensor signals in order to control alarm and lockout signals. Whenever there is
no sensor, the quality of the binary input will be low. If sensor quality is low, then lockout and
alarm signals will get reset.
2.2.5 -
2.2.6 -
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"Preparing the IED to verify settings"
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Commissioning manual
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