12.18.6 Monitored dataTable 430:SSCBR Monitored dataName Type Values (Range) Unit DescriptionCBOTRVT REAL - ms Travel time of the CB duringopening operationCBCLTRVT REAL - ms Travel time of the CB duringclosing operationSPRCHRT REAL - s The charging time of the CBspringNO_OPR INTEGER - - Number of CB operation cycleNOOPRDAY INTEGER - - The number of days CB hasbeen inactiveCBLIFE_A INTEGER - - CB Remaining life phase ACBLIFE_B INTEGER - - CB Remaining life phase BCBLIFE_C INTEGER - - CB Remaining life phase CIACC_A REAL - - Accumulated currents power(Iyt), phase AIACC_B REAL - - Accumulated currents power(Iyt), phase BIACC_C REAL - - Accumulated currents power(Iyt), phase C12.18.7 Operation principleThe circuit breaker condition monitoring function includes a number of metering andmonitoring subfunctions. The functions can be enabled and disabled with the Operationsetting. The corresponding parameter values are Enable and Disable. The operationcounters are cleared when Operation is set to Disabled.The operation of the functions can be described by using a module diagram. All themodules in the diagram are explained in the next sections.Section 12 1MRK 511 287-UUS AMonitoring528Technical manual
