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
9.1. Test the actual set value defined by
SpChAlmTime
.
9.2. Enable
SPRCHRST
input. Also activate SPRCHRD after a time greater than set time
SpChAlmTime
.
9.3. At this condition,
SPCHALM
is activated.
10. Test of CB gas pressure indication
10.1. Test the actual set value defined by
tDGasPresAlm
and
tDGasPresLO
.
10.2. The output
GPRESALM
is activated after a time greater than set time of
tDGasPresAlm
value if the input
PRESALM
is enabled.
10.3. The output
GPRESLO
is activated after a set time of
tDGasPresLO
value if the input
PRESLO
is enabled.
11.13.3.2
Completing the test
GUID-0A16206F-690E-46EF-86F4-5A89E0BF640B v3
1.
Continue to test another function or end the test by changing the
Test mode
setting to
Off
.
2.
Restore connections and settings to their original values if they were changed for testing
purposes.
1MRK 511 403-UEN Rev. L
Section 11
Testing functionality by secondary injection
Bay control REC670
193
Commissioning manual
© 2017 - 2022 Hitachi Energy. All rights reserved
Содержание REC670
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