5.1. Test the set current level defined by
AccStopCurr
.
5.2. Check the
CLOSEPOS
output by changing the
POSOPEN
to
0
and
POSCLOSE
to
1
.
5.3. Check the
OPENPOS
output by changing the
POSOPEN
to
1
and
POSCLOSE
to
0
and 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
.
5.4. Check the circuit breaker is in
INVDPOS
if auxiliary contacts read same
value or CB is open and inject the current in selected phase more than
AccStopCurr
set value.
6. Test of remaining life of CB
6.1. Test the set timing defined by
RatedOperCurr
,
RatedFltCurr
,
OperNoRated
,
OperNoFault
,
DirCoef
,
CBLifeAlmLevel
.
6.2. Vary the phase current in the selected phase from below rated operated
current,
RatedOperCurr
to above rated fault current,
RatedFltCurr
of a
breaker.
6.3. The remaining life of CB output
CBLIFEPH
is estimated when the CB is
changed from closed to open position. Check that the output
CBLIFEPH
is decreased with a value that corresponds to the injected current.
6.4.
CBLIFEAL
is activated as soon as
CBLIFEPH
is below the set
CBLifeAlmLevel
value.
7. Test of accumulated energy
7.1. Test the actual set values defined by
AccSelCal
to
Aux Contact
,
ContTrCorr
and
AlmAccCurrPwr
.
7.2. Inject phase current in the selected phase such that its value is greater
than set
AccStopCurr
value.
7.3. When the breaker goes to open position, accumulated energy
IPOWPH
is
calculated. The calculated value can be seen on the output
IPOWPH
.
7.4. Alarm signal
IPOWALPH
appears when
IPOWPH
is greater than set
AlmAccCurrPwr
value.
7.5. Lockout signal
IPOWLOPH
appears if
IPOWPH
exceeds further to the
threshold value
LOAccCurrPwr
.
7.6. Calculation of accumulated energy
IPOWPH
is stopped when injected
current is lower than set
AccStopCurr
value.
8. Test of CB operation cycles
8.1. Test the actual set values defined by
OperAlmLevel
and
OperLOLevel
.
8.2. The operation counter, NOOPER is updated for every close-open
sequence of the breaker by changing the position of auxiliary contacts
POSCLOSE
and
POSOPEN
.
8.3.
OPERALM
is activated when NOOPER value exceeds the set
OperAlmLevel
value. The actual value can be read on the output
NOOPER
.
8.4.
OPERLO
is activated when NOOPER value exceeds the set
OperLOLevel
value.
9. Test of CB spring charge monitoring
1MRK 506 377-UEN C
Section 10
Testing functionality by secondary injection
Railway application RER670 2.2 IEC
167
Commissioning manual
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