ABB RED650 Technical Manual page 587

1MRK 505 394-UEN A
Line differential protection RED650 2.2 IEC
Technical manual
and the behavior of each component are compared between the trigger and the post
processing time. If there are any differences, then it will be added in the header file
under section Changed_settings.
In the HDR file, section tag Settings has an attribute tag called function which
includes parameters that are grouped based on the function instance. The function
tag has content called name which is the function name provided together with the
user-defined name in brackets similar to the HMI. Status content will indicate the
runtime status of the function and beh content will indicate the IEC61850 behavior
of the components, if supported. Non runtime components will not have status and
beh tag contents.
Parameters of the function are listed as a child tag Set with contents name, value
and unit:
• name — parameter name same as HMI
• value — actual parameter value
• unit — parameter unit
The changed_settings attribute tag is similar to the settings section. It contains
functions which have changes in parameter value or runtime status or IEC61850
behavior when compared with trigger and post-processing settings values.
Fault locator (FL)
The fault location function calculates the distance to fault.
Time tagging
The IED has a built-in real-time calendar and clock. This function is used for all
time tagging within the disturbance report
Recording times
Disturbance report DRPRDRE records information about a disturbance during a
settable time frame. The recording times are valid for the whole disturbance report.
Disturbance recorder (DR), event recorder (ER) and indication function register
disturbance data and events during tRecording, the total recording time.
The total recording time, tRecording, of a recorded disturbance is:
tRecording = PreFaultrecT + tFault + PostFaultrecT or PreFaultrecT + TimeLimit , depending on
which criterion stops the current disturbance recording
Section 15
Monitoring
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