Application - ABB RET670 Applications Manual

1MRK504116-UUS C
3.15.6.1
Application manual
Function description
Analog input signals
Disturbance report
Disturbance report
Disturbance report
Disturbance report

Application

To get fast, complete and reliable information about disturbances in the primary and/or
in the secondary system it is very important to gather information on fault currents,
voltages and events. It is also important having a continuous event-logging to be able
to monitor in an overview perspective. These tasks are accomplished by the
disturbance report function DRPRDRE and facilitate a better understanding of the
power system behavior and related primary and secondary equipment during and after
a disturbance. An analysis of the recorded data provides valuable information that can
be used to explain a disturbance, basis for change of IED setting plan, improve existing
equipment, and so on. This information can also be used in a longer perspective when
planning for and designing new installations, that is, a disturbance recording could be a
part of Functional Analysis (FA).
Disturbance report DRPRDRE, always included in the IED, acquires sampled data of
all selected analog and binary signals connected to the function blocks that is,
• maximum 30 external analog signals,
• 10 internal derived analog signals, and
• 96 binary signals.
Disturbance report function is a common name for several functions that is, Indications
(IND), Event recorder (ER), Sequential of events (SOE), Trip value recorder (TVR),
Disturbance recorder (DR).
Disturbance report function is characterized by great flexibility as far as configuration,
starting conditions, recording times, and large storage capacity are concerned. Thus,
disturbance report is not dependent on the operation of protective functions, and it can
record disturbances that were not discovered by protective functions for one reason or
another. Disturbance report can be used as an advanced stand-alone disturbance recorder.
Every disturbance report recording is saved in the IED. The same applies to all events,
which are continuously saved in a ring-buffer. Local HMI can be used to get
information about the recordings, and the disturbance report files may be uploaded in
the PCM600 using the Disturbance handling tool, for report reading or further analysis
IEC 61850 IEC 60617
identification identification
A41RADR -
DRPRDRE -
A1RADR -
A4RADR -
B1RBDR -
Section 3
IED application
ANSI/IEEE C37.2
device number
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781