frequency, number of analog and binary channels and recording time. In a 50 Hz
system it is possible to record 100 where the maximum recording time is 3.4 seconds.
The memory limit does not affect the rest of the disturbance report (Event list, Event
recorder, Indications and Trip value recorder).
The maximum number of recordings depend on each recordings total
recording time. Long recording time reduces the number of
recordings to less than 100.
Disturbance information
Date and time of the disturbance, the indications, events, fault location and the trip
values are available on the LHMI.
To acquire a complete disturbance report, use a PC and either the PCM600
Disturbance Handling tool or MMS (over 61850) client. The PC can be connected to
IED front port, or remotely via a station bus.
Indications
Indications is a list of signals that are activated during the total recording time of the
disturbance (not time-tagged). See the section about indications for detailed
information.
Event recorder
The event recorder can contain a list of up to 150 time-tagged events which have
occurred during a disturbance. The information is available via the LHMI or
PCM600. See the event recorder section for detailed information.
Event list
The event list may contain a list of totally 1000 time-tagged events. The list
information is continuously updated when the selected binary signals change state.
The oldest data is overwritten. The logged signals can be presented via LHMI, WHMI
or PCM600. See the event list section for detailed information.
Trip value recorder
The recorded trip values include the phasors of the selected analog signals before the
fault and during the fault. See the trip value recorder section for detailed information.
Disturbance recorder
The disturbance recorder records analog and binary signal data before, during and
after the fault. See the disturbance recorder section for detailed information.
Time tagging
The IED has a built-in real-time calendar and clock. This function is used for all time
tagging within the disturbance report
Recording times
Disturbance report DRRDRE records information about a disturbance during a
settable time frame. The recording times are valid for the whole disturbance report.
1MRS757256 F
Section 3
Basic functions
PML630/Compact Load-Shedding Solution
79
Technical Manual
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