Testing The Gas Medium Supervision For Temperature Alarm And Temperature Lockout Conditions; Completing The Test; Breaker Monitoring Sscbr; Verifying The Settings - Hitachi Relion 670 Series Commissioning Manual

Section 11
Testing functionality by secondary injection
11.13.2.3 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.
11.13.2.4

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.
11.13.3

Breaker monitoring SSCBR

Prepare the IED for verification of settings outlined in section "Testing the IED operation".
The Signal Monitoring tool in PCM600 shows the service values that are available on the Local HMI
as well.
Values of the logical signals belong to the breaker monitoring are available on the local HMI under:
Main menu/Test/Function status/Monitoring/BreakerMonitoring /SSCBR:x
11.13.3.1

Verifying the settings

1. Connect the test set for the injection of a three-phase current to the appropriate current
terminals of the IED.
2. If current need to be injected for a particular test, it should be done in the phase selected by the
PhSel parameter.
3. Follow the sequence for positioning the auxiliary contacts before testing:
POSCLOSE
POSOPEN
4. Test of CB contact travel time
4.1. Test the set timing defined by OpenTimeCorr, CloseTimeCorr, tTrOpenAlm and
4.2. Change the status of the auxiliary contacts such that travel time to open TTRVOP and
4.3. Check that TRVTOPAL and TRVTCLAL are activated.
5. Test of CB status
192
tTrCloseAlm.
travel time to close TTRVCL exceed the respective set values (tTrOpenAlm and
tTrCloseAlm). The measured travel time for opening and closing is shown on TTRVOP and
TTRVCL respectively.
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