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8.7
Fault Recording
General
8.7.1
Fault data relates to events or records that are recorded during a device fault. Sampled values of analog meas-
urement inputs and calculated measured values of the device are recorded in the fault recording. A fault
record can also used for recording binary events as traces. Fault events are logged with time stamp in the fault
log. A corresponding fault exists in the fault log for each recorded fault record. The unique assignment is
formed by the time stamp and the fault defined with an automatically incrementing number.
After a fault the most important data of the fault is spontaneously shown on your device display. You can
select whether the spontaneous fault display is updated with each fault or only in case of faults with tripping
(no Trip – no Flag). Spontaneous fault displays such as LEDs fall back again in case of pickup without tripping.
NOTE
i
i
Events are always logged in the fault log.
The control settings of the fault recording are described in the Device manual. The starting condition,
recording length, and the storage criterion are selected with these parameters.
You can rename the signals in the DIGSI information routing matrix. You can change the order of the binary
signals and measured-value channels to be recorded in DIGSI under Signal sequence. For further information,
you will find help in DIGSI 5 version V07.50 and higher (ordering number: C53000-D5000-C001-D). The
following chapter describes the readout and editing of fault records.
Fault Definition
A fault is started by the incoming pickup of a protection function and ends after the trip command with the
cleared pickup.
When using an automatic reclosing function, the full reclosing cycle (successful or not) is integrated in the
fault. If evolving faults appear within reclosing cycles, the entire clearing process is logged under one fault
number even in multiple pickup cycles. Without automatic reclosing function every pickup is also recorded as
its own fault.
User-defined fault configuration and initiation by an external starting signal are also possible.
NOTE
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Define the extent of the fault recordings using the control settings of the Fault recording function.
•
Logging of events in the fault log always occurs.
8.7.2
Reading Fault Records
You can read out the fault record recorded in the device via the communication interfaces. You can do this
from a PC with DIGSI 5 or by way of standard (IEC 61850, IEC 60870-5-103) from a central controller upon
request. The fault records read out via DIGSI 5 are saved on the PC in the COMTRADE format. You can analyze
the fault records with the analytical software SIGRA.
Procedure
•
Use the project-tree window to reach the fault records of your SIPROTEC 5 device.
Project → Device → Records
The fault records that have been loaded from the device to date are displayed with time stamps and fault
numbers.
•
To read all fault records stored in the device, click the Read records button in the headline of the indica-
tion list.
SIPROTEC 5, Operation, Manual
C53000-G5040-C003-9, Edition 06.2018
Operation in the Operating State
8.7 Fault Recording
161
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