Breaker Monitoring Sscbr; Verifying The Settings - ABB Relion 670 Series Commissioning Manual

1MRK 504 165-UEN E
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
3. Follow the sequence for positioning the auxiliary contacts before testing:
POSCLOSE
POSOPEN
4. Test of CB contact travel time
4.1.
4.2. Change the status of the auxiliary contacts such that travel time to open TTRVOP
4.3. Check that TRVTOPAL and TRVTCLAL are activated.
5. Test of CB status
5.1.
5.2.
5.3.
5.4. Check the circuit breaker is in INVDPOS if auxiliary contacts read same value or CB is
6. Test of remaining life of CB
6.1.
6.2. Vary the phase current in the selected phase from below rated operated current,
6.3. The remaining life of CB output CBLIFEPH is estimated when the CB is changed from
6.4. CBLIFEAL is activated as soon as CBLIFEPH is below the set
7. Test of accumulated energy
7.1.
7.2.
7.3.
Transformer protection RET670
Commissioning manual
PhSel parameter.
Test the set timing defined by
tTrCloseAlm .
and travel time to close TTRVCL exceed the respective set values (
tTrCloseAlm ). The measured travel time for opening and closing is shown on TTRVOP
and TTRVCL respectively.
Test the set current level defined by
Check the CLOSEPOS output by changing the
Check the OPENPOS output by changing the
also inject the current in the selected phase slightly lower and higher than
AccStopCurr set value. Only for a current lower than set AccStopCurr should activate
the output POSOPEN.
open and inject the current in selected phase more than
Test the set timing defined by
OperNoFault , DirCoef , CBLifeAlmLevel .
RatedOperCurr to above rated fault current, RatedFltCurr of a breaker.
closed to open position. Check that the output CBLIFEPH is decreased with a value
that corresponds to the injected current.
Test the actual set values defined by
AlmAccCurrPwr .
Inject phase current in the selected phase such that its value is greater than set
AccStopCurr value.
When the breaker goes to open position, accumulated energy IPOWPH is calculated.
The calculated value can be seen on the output IPOWPH.
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Testing functionality by secondary injection
0
0
OpenTimeCorr , CloseTimeCorr , tTrOpenAlm and
AccStopCurr .
POSOPEN to 0 and POSCLOSE to 1 .
POSOPEN to 1 and POSCLOSE to 0 and
RatedOperCurr , RatedFltCurr , OperNoRated ,
AccSelCal to Aux Contact , ContTrCorr and
Section 11
GUID-10D26C82-79FF-4EAD-AE4A-2F2DBE965087 v3
GUID-962A344D-5F8D-49A6-B3AC-29C7FEED0A3D v4
1 0
0 1
tTrOpenAlm and
AccStopCurr set value.
CBLifeAlmLevel value.
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