OperationThe operation of Disturbance report function DRPRDRE has to be set Enabled orDisabled. If Disabled is selected, note that no disturbance report is registered, and nonesub-function will operate (the only general parameter that influences Sequential of events(SOE)).Operation = Disabled:• Disturbance reports are not stored.• LED information (yellow - pickup, red - trip) is not stored or changed.Operation = Enabled:• Disturbance reports are stored, disturbance data can be read from the local HMI andfrom a PC using PCM600.• LED information (yellow - pickup, red - trip) is stored.Every recording will get a number (0 to 999) which is used as identifier (local HMI,disturbance handling tool and IEC 61850). An alternative recording identification is date,time and sequence number. The sequence number is automatically increased by one foreach new recording and is reset to zero at midnight. The maximum number of recordingsstored in the IED is 100. The oldest recording will be overwritten when a new recordingarrives (FIFO).To be able to delete disturbance records, Operation parameter has to beEnabled.The maximum number of recordings depend on each recordings totalrecording time. Long recording time will reduce the number of recordingsto less than 100.The IED flash disk should NOT be used to store any user files. This mightcause disturbance recordings to be deleted due to lack of disk space.14.6.3.1 Recording timesPrefault recording time (PreFaultRecT) is the recording time before the starting point ofthe disturbance. The setting should be at least 0.1 s to ensure enough samples for theestimation of pre-fault values in the Trip value recorder (TVR) function.Section 14 1MRK 505 337-UUS -Monitoring424Application manual
