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310
Disturbance report (DRP)
•
Date and time
•
Selected indications (set with the Indication mask)
•
Distance to fault and fault loop selected by the Fault locator
The date and time of the disturbance, the trigger signal, the indications, the fault locator
result and the trip values are available, provided that the corresponding functions are
installed.
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Indications is a list of signals that were activated during the fault time of the distur-
bance. A part (or all) of these signals are automatically scrolled on the local HMI after
a disturbance.
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The event recorder contains an event list with time-tagged events. In the Station Mon-
itoring System, this list is directly connected to a disturbance.
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The fault locator contains information about the distance to the fault and about the mea-
suring loop that was selected for the calculation. After changing the system parameters
in the terminal, a recalculation of the distance to the fault can be made in the protection
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Trip values includes phasors of currents and voltages before the fault and during the
fault
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The disturbance recorder records analog and binary signal data before, during and after
the fault.
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The disturbance report records information about a disturbance during a settable time-
frame. The recording times are valid for the whole disturbance report. The disturbance
recorder and the event recorder register disturbance data and events during W5HFRUGLQJ,
the total recording time. Indications are only registered during the fault time.
The total recording time, W5HFRUGLQJ, of a recorded disturbance is:
tRecording =
tPre + tFault + tPost or tPre + tLim, depending on which criterion stops the
current disturbance recording
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