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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, Event recorder, Event list, Trip value recorder, Disturbance recorder.
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
(using WaveWin, that can be found on the PCM600 installation CD). The user can
also upload disturbance report files using FTP or MMS (over 61850–8–1) clients.
If the IED is connected to a station bus (IEC 61850-8-1), the disturbance recorder
(record made and fault number) and the fault locator information are available as
GOOSE or Report Control data.
12.7.3
Setting guidelines
The setting parameters for the Disturbance report function DRPRDRE are set via the
local HMI or PCM600.
It is possible to handle up to 40 analog and 96 binary signals, either internal signals or
signals coming from external inputs. The binary signals are identical in all functions
that is, Disturbance recorder, Event recorder, Indication, Trip value recorder and
Event list function.
User-defined names of binary and analog input signals is set using PCM600. The
analog and binary signals appear with their user-defined names. The name is used in
all related functions (Disturbance recorder, Event recorder, Indication, Trip value
recorder and Event list).
Figure
shows the relations between Disturbance report, included functions and
function blocks. Event list, Event recorder and Indication uses information from the
binary input function blocks (BxRBDR). Trip value recorder uses analog information
from the analog input function blocks (AxRADR),. Disturbance report function
acquires information from both AxRADR and BxRBDR.
1MRK 505 291-UEN A
Section 12
Monitoring
271
Application manual
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