12.18.6 Monitored data
Table 430: SSCBR Monitored data
Name
Type Values (Range) Unit Description
CBOTRVT REAL - ms Travel time of the CB during
opening operation
CBCLTRVT REAL - ms Travel time of the CB during
closing operation
SPRCHRT REAL - s The charging time of the CB
spring
NO_OPR INTEGER - - Number of CB operation cycle
NOOPRDAY INTEGER - - The number of days CB has
been inactive
CBLIFE_A INTEGER - - CB Remaining life phase A
CBLIFE_B INTEGER - - CB Remaining life phase B
CBLIFE_C INTEGER - - CB Remaining life phase C
IACC_A REAL - - Accumulated currents power
(Iyt), phase A
IACC_B REAL - - Accumulated currents power
(Iyt), phase B
IACC_C REAL - - Accumulated currents power
(Iyt), phase C
12.18.7 Operation principle
The circuit breaker condition monitoring function includes a number of metering and
monitoring subfunctions. The functions can be enabled and disabled with the Operation
setting. The corresponding parameter values are Enable and Disable. The operation
counters are cleared when Operation is set to Disabled.
The operation of the functions can be described by using a module diagram. All the
modules in the diagram are explained in the next sections.
Section 12 1MRK 511 287-UUS A
Monitoring
528
Technical manual
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