Dfr Record Analysis; Dfr Reports; Ied Self-Supervision; Non-Operative Functions - Hitachi Relion 670 Series Operation Manual

Section 6
IED operation
6.2.2

DFR record analysis

The IED collects disturbance records of fault events which are set to trigger the DFR recorder. DFR data
is collected and stored for later viewing and analysis. The DFR recorder data can be read and analyzed,
for example, with PCM600.
6.2.3

DFR reports

PCM600 can be used for creating reports of DFR recorder data.
6.2.4

IED self-supervision

The IED self-supervision handles internal run-time fault situations. The main indication of an internal fault
is a flashing green Normal LED.
Internal faults can be divided to hardware errors, run-time errors in the application or operating system
and communication errors. Further actions always depend on the cause of the error.
The IED records IED status data and events.
6.2.5

Non-operative functions

Protection and control functions can be non-operative if:
• function is not turned on, that is, Operation = Off.
• function is connected to bad or lost input data from MU.
• function is set to a non-operative state by IEC 61850.
Non-operative functions, functions that are blocked due to bad or lost data from MU and functions set to
a non-operative state by IEC 61850 are listed on the LHMI under Main menu/Test/Function overview.
52
For more information, see the PCM600 documentation.
For more information, see the PCM600 documentation.
Only authorized and skilled personnel should analyze the errors and decide on further
actions.
Document all the recorded data from the IED before resetting the tripping and IED lockout
functions.
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