ABB RED650, Technical Manual

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Main Contact
close
open
POSCLOSE 1
0
Energy
Accumulation
starts
ContTrCorr
(Negative)
Main Contact
close
POSCLOSE
Energy
Accumulation
starts
ContTrCorr
(Positive)
1
0
open
IEC12000618_1_en.vsd
IEC12000618 V1 EN-US
Figure 274: Significance of correction factor setting
Accumulated energy can also be calculated by using the change of state of the trip
output.
TRIND
is used to get the instance of the trip output and the time delay
between the trip initiation and the opening of the main contact is introduced by the
setting
OperTimeDelay .
The accumulated energy output
IPOWPH
is provided as a service value. The value
can be reset by enabling
RSTIPOW
through LHMI or by activating the input
RSTIPOW
.
Alarm limit check
The
IPOWALPH
alarm is activated when the accumulated energy exceeds the set
value AlmAccCurrPwr .
IPOWLOPH
is activated when the accumulated energy exceeds the limit of the
LOAccCurrPwr setting.
The
IPOWALPH
and
IPOWLOPH
outputs can be blocked by activating the binary
input
BLKALM
.
15.4.7.5 Circuit breaker operation cycles
GUID-D3481D26-2E42-455E-8DB2-91538421F3B1 v9
The circuit breaker operation cycles subfunction counts the number of closing-
opening sequences of the breaker. The operation counter value is updated after
each closing-opening sequence. The operation is described in figure
275 .
1MRK 505 394-UEN A
Section 15
Monitoring
Line differential protection RED650 2.2 IEC 549
Technical manual