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1MRK 505 378-UEN Rev. K
5.
Ensure that binary input SENPRESQ is activated and reduce further the pressure level input
below PresLOLimit or activate the binary input signal SENPRESLO, check that PRESLO signal
appears after a set time delay of tPressureLO .
6.
Activate BLOCK binary input and check that the outputs PRESALM, PRESLO, ALARM and
LOCKOUT disappears.
7.
Reset the BLOCK binary input.
8.
Ensure that pressure lockout condition exists and then activate the reset lockout input
RESETLO and check that the outputs PRESLO and LOCKOUT reset.
11.13.1.3
Testing the gas medium supervision for temperature alarm and
temperature lockout conditions
1.
Activate the binary input SENTEMPQ.
2.
Consider the analogue temperature input SENTEMP and set SENTEMP to a value higher than
TempAlarmLimit , check that outputs TEMPALM and ALARM are activated after a set time
delay of tTempAlarm .
3.
Temperature lockout input SETTLO can be used to set TEMPLO signal.
4.
Ensure that binary input SENTEMPQ is activated and increase further the temperature input
above TempLOLimit , check that the outputs TEMPLO and LOCKOUT appear after a set time
delay of tTempLockOut .
5.
Activate BLOCK binary input and check that the outputs TEMPALM, TEMPLO, ALARM and
LOCKOUT disappear.
6.
Reset the BLOCK binary input.
7.
Ensure that temperature lockout condition exists and then activate the reset lockout input
RESETLO and check that the outputs TEMPLO and LOCKOUT reset.
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
settings"" in this chapter.
Values of logical signals for SSIML protection are available on the local HMI under Main menu /
Test /Function status /Monitoring /InsulationLiquid /SSIML: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
Document
revision
A
B
C
D
E
Table continues on next page
Line differential protection RED670
Commissioning manual
Product
History
revision
2.2.1
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2.2.1
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2.2.2
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2.2.3
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2.2.3
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© 2017 - 2022 Hitachi Energy. All rights reserved
Testing functionality by secondary injection
GUID-EC145626-90B0-45A2-AD58-CB8BF203FE16 v3
GUID-DD08C598-A35C-4300-9555-A0877F7DC511 v3
GUID-6426FDDA-B949-4FE7-BF42-B52014A9344B v5
""Preparing the IED to verify
GUID-751C8C78-891D-423B-825A-0774D0B6C658 v2
Section 11
237
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