ABB REM630 Product Manual

Also see for REM630: Applications manual Applications manual

Contents

ABB REM630 Product Manual Manual pdf 12 page image

capacity of storing 1000 events withassociated time stamps and user definableevent texts. The non-volatile memory retainsits data also in case the IED temporarily losesits auxiliary supply. The event log facilitatesdetailed pre- and post-fault analyses of faultsand disturbances.The SoE information can be accessed locallyvia the user interface on the IED front panelor remotely via the communication interfaceof the IED. The information can further beaccessed, either locally or remotely, using theweb-browser based user interface.The logging of communication events isdetermined by the used communicationprotocol and the communication engineering.The communication events are automaticallysent to station automation and SCADAsystems once the required communicationengineering has been done.9. Disturbance reportThe disturbance report includes informationcollected during the fault situation. Thereport includes general information such asrecording time, pre-fault time and post faulttime. Further, the report includes pre-faultmagnitude, pre-fault angle, fault magnitudeand fault angle trip values. By default, thedisturbance reports are stored in a non-volatile memory. The numerical disturbancereport can be accessed via the local frontpanel user interface. A more comprehensivedisturbance report with waveforms isavailable using PCM600.10. Circuit-breakermonitoringThe condition monitoring functions of theIED constantly monitors the performance andthe condition of the circuit breaker. Themonitoring comprises the spring chargingtime, SF6 gas pressure, the travel-time,operation counter, accumulated energycalculator, circuit-breaker life estimator andthe inactivity time of the circuit breaker.The monitoring functions provide operationalcircuit breaker history data, which can beused for scheduling preventive circuit breakermaintenance.11. Trip-circuitsupervisionThe trip-circuit supervision continuouslymonitors the availability and operability ofthe trip circuit. It provides open-circuitmonitoring both when the circuit breaker isin its closed and in its open position. It alsodetects loss of circuit-breaker control voltage.12. Self-supervisionThe IED’s built-in self-supervision systemcontinuously monitors the state of the IEDhardware and the operation of the IEDsoftware. Any fault or malfunction detected isused for alerting the operator.Self-supervision events are saved into aninternal event list which can be accessedlocally via the user interface on the IED frontpanel. The event list can also be accessedusing the web-browser based user interfaceor PCM600.13. Fuse failuresupervisionThe fuse failure supervision detects failuresbetween the voltage measurement circuit andMotor Protection and Control 1MRS756977 DREM630Product version: 1.1 Issued: 2011-05-1812 ABB