Hitachi Relion 670 Series Commissioning Manual page 246

Section 11
Testing functionality by secondary injection
4.3. Check that OPTMOPNALM and OPTMCLSALM are activated.
5. Test of CB status
5.1. Test the set current level defined by AccmAbrStopCur.
5.2. Check the CLSPOS output by changing the POSOPN to 0 and POSCLS to 1.
5.3. Check the OPNPOS output by changing the POSOPN to 1 and POSCLS to 0 and also inject the
5.4. Check the circuit breaker is in INVDPOS if auxiliary contacts read same value or CB is open
6. Test of remaining life of CB
6.1. Test the set timing defined by RatedOpCur, RatedFltCur, OpNumRatedCur, OpNumFltCur,
6.2. Vary the phase current in the selected phase from below rated operated current, RatedOpCur
6.3. The remaining life of CB output RMNLIFE is estimated when the CB is changed from closed to
6.4. RMNLIFEALM is activated as soon as RMNLIFE is below the set RmnLifeAlmLev value.
7. Test of accumulated contact abrasion
7.1. Test the actual set values defined by AccmAbrClcMod to Aux Contact, OpnTmTrvlCor and
7.2. Inject phase current in the selected phase such that its value is greater than set
7.3. When the breaker goes to open position, accumulated contact abrasion ACCMABR is
7.4. Warning signal ACCMABRWRN appears when ACCMABR is greater than set AccmAbrWrnLev
7.5. Alarm signal ACCMABRALM appears if ACCMABR exceeds further to the threshold value
7.6. Calculation of accumulated contact abrasion ACCMABR is stopped when injected current is
8. Test of CB operation cycles
8.1. Test the actual set values defined by OpNumWrnLev and OpNumAlmLev.
8.2. The operation counter, OPNUM is updated for every close-open sequence of the breaker by
8.3. OPCNTWRN is activated when OPNUM value exceeds the set OpNumWrnLev value. The actual
8.4. OPCNTALM is activated when OPNUM value exceeds the set OpNumAlmLev value.
9. Test of CB spring charge monitoring
9.1. Test the actual set value defined by SpcTmAlmLev.
9.2. Enable SPC input. Also activate SPD after a time greater than set time SpcTmAlmLev.
9.3. At this condition, SPCALM is activated.
10. Test of CB gas pressure indication
240
OpTmClsAlmLev). The measured operation time for opening and closing is shown on
OPTMOPN and OPTMCLS respectively.
current in the selected phase slightly lower and higher than AccmAbrStopCur set value. Only
for a current lower than set AccmAbrStopCur should activate the output POSOPN.
and inject the current in selected phase more than AccmAbrStopCur set value.
DirCff, RmnLifeAlmLev.
to above rated fault current, RatedFltCur of a breaker.
open position. Check that the output RMNLIFE is decreased with a value that corresponds to
the injected current.
AccmAbrWrnLev.
AccmAbrStopCur value.
calculated. The calculated value can be seen on the output ACCMABR.
value.
AccmAbrAlmLev.
lower than set AccmAbrStopCur value.
changing the position of auxiliary contacts POSCLS and POSOPN.
value can be read on the output OPNUM.
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1MRK506371-UUS Rev. M
Line distance protection REL670
Commissioning manual