Completing The Test; Liquid Medium Supervision Ssiml; Testing The Liquid Medium Supervision For Level Alarm And Level Lockout Conditions; Testing The Liquid Medium Supervision For Temperature Alarm And Temperature Lock Out Conditions - ABB Relion 670 Series Commissioning Manual

Transformer protection
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Section 11
Testing functionality by secondary injection
11.13.1.3

Completing the test

Continue to test another function or end the test by changing the
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"
Values 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
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
3.
Liquid level lockout input SENLVLLO can be used to set LVLLO.
4.
Also, reduce the liquid level input below
SENLVLLO, check that LVLLO signal after a set time delay of
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.
11.13.2.2
Testing the liquid medium supervision for temperature alarm and
temperature lock out conditions
1.
Consider the analogue temperature input SENTEMP and set SENTEMP to a value higher
than
time delay of
2.
Temperature lockout input SETTLO can be used to set TEMPLO signal.
3.
Also, increase further the temperature input above
TEMPLO and LOCKOUT appears after a set time delay of
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.
11.13.2.3
Completing the test
Continue to test another function or end the test by changing the
Restore connections and settings to their original values, if they were changed for testing
purposes.
240
in this chapter.
TempAlarmLimit , check that outputs TEMPALM and ALARM are activated after a set
tTempAlarm .
© Copyright 2017 ABB. All rights reserved
TestMode setting to Off .
"Preparing the IED to verify
tLevelAlarm .
LevelLOLimit or activate the binary input signal
tLevelLockOut .
TempLOLimit , check that the outputs
tTempLockOut .
TestMode setting to Off .
Transformer protection RET670
1MRK 504 165-UEN E
GUID-DD08C598-A35C-4300-9555-A0877F7DC511 v2
GUID-6426FDDA-B949-4FE7-BF42-B52014A9344B v4
GUID-C1F1E6CA-9512-4358-A4E7-84CC3698D156 v3
GUID-189AF20B-D0E3-453D-A787-68F25D0903D3 v1
GUID-1A0D8AF0-4C48-45E8-B31D-96734ED1A4D2 v2
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