ABB REL670 2.2 IEC, Applications Manual

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Operation
M12179-82 v7
The operation of Disturbance report function DRPRDRE has to be set On or Off . If
Off is selected, note that no disturbance report is registered, and none sub-function
will 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 local
HMI 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 (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 for each new recording and is reset to zero at
midnight. The maximum number of recordings stored in the IED is 100. The oldest
recording will be overwritten when a new recording arrives (FIFO).
To be able to delete disturbance records, Operation parameter has
to be On .
The maximum number of recordings depend on each recordings
total recording time. Long recording time will reduce the number of
recordings to less than 100.
The IED flash disk should NOT be used to store any user files. This
might cause disturbance recordings to be deleted due to lack of disk
space.
18.6.3.1 Recording times
M12179-88 v6
The 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 more
or less but not the Event list (EL) function.
Prefault recording time ( PreFaultRecT ) is the recording time before the starting
point of the disturbance. The setting should be at least 0.1 s to ensure enough
samples for the estimation of pre-fault values in the Trip value recorder (TVR)
function.
1MRK 506 369-UEN B
Section 18
Monitoring
Line distance protection REL670 2.2 IEC 787
Application manual