Operation M12179-82 v7The operation of Disturbance report function DRPRDRE has to be set On or Off. IfOff is selected, note that no disturbance report is registered, and none sub-functionwill operate (the only general parameter that influences Event list (EL)).Operation = Off:• Disturbance reports are not stored.• LED information (yellow - start, red - trip) is not stored or changed.Operation = On:• Disturbance reports are stored, disturbance data can be read from the localHMI and from a PC for example using PCM600.• LED information (yellow - start, red - trip) is stored.Every recording will get a number (0 to 999) which is used as identifier (localHMI, disturbance handling tool and IEC 61850). An alternative recordingidentification is date, time and sequence number. The sequence number isautomatically increased by one for each new recording and is reset to zero atmidnight. The maximum number of recordings stored in the IED is 100. The oldestrecording will be overwritten when a new recording arrives (FIFO).To be able to delete disturbance records, Operation parameter hasto be On.The maximum number of recordings depend on each recordingstotal recording time. Long recording time will reduce the number ofrecordings to less than 100.The IED flash disk should NOT be used to store any user files. Thismight cause disturbance recordings to be deleted due to lack of diskspace.15.6.3.1 Recording times M12179-88 v6The different recording times for Disturbance report are set (the pre-fault time,post-fault time, and limit time). These recording times affect all sub-functions moreor less but not the Event list (EL) function.Prefault recording time (PreFaultRecT) is the recording time before the startingpoint of the disturbance. The setting should be at least 0.1 s to ensure enoughsamples for the estimation of pre-fault values in the Trip value recorder (TVR)function.1MRK 505 393-UEN B Section 15MonitoringLine differential protection RED650 2.2 IEC 339Application manual
