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
.
16.4.7.5
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
.
POSCLOSE
POSOPEN
RSTCBWR
BLOCK
BLKALM
Operation
counter
Alarm limit
Check
NOOPER
OPERALM
OPERLO
IEC12000617 V2 EN-US
Figure 214:
Functional module diagram for circuit breaker operation cycles
Operation counter
The operation counter counts the number of operations based on the state of change of
the auxiliary contact inputs
POSCLOSE
and
POSOPEN
.
The number of operations NOOPER is given as a service value. The old circuit breaker
operation counter value can be used by adding the value to the
InitCounterVal
parameter and can be reset by
Clear CB wear
in the Clear menu on the LHMI or
activating the input
RSTCBWR
.
1MRK 511 408-UUS A
Section 16
Monitoring
Phasor measurement unit RES670 2.2 ANSI
543
Technical manual
Summary of Contents for Relion RES670
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