Hitachi Relion 670 Series Product Manual page 55

Line differential protection RED670
Version 2.2
CFG, and a data file DAT. In the COMTRADE2013 format, it
is saved as CFF single file format. The same applies to all
events, which are continuously saved in a ring-buffer. The
local HMI is used to get information about the recordings.
The disturbance report files can be uploaded to PCM600 for
further analysis using the disturbance handling tool.
IED must be configured with
COMTRADE1999 format for disturbance
recorder communication with IEC
60870-5-103 protocol.
Event list DRPRDRE
Continuous event-logging is useful for monitoring the
system from an overview perspective and is a complement
to specific disturbance recorder functions.
The event list logs all binary input signals connected to the
Disturbance recorder function. The list may contain up to
5000 time-tagged events stored in a ring-buffer.
Indications DRPRDRE
To get fast, condensed and reliable information about
disturbances in the primary and/or in the secondary system
it is important to know, for example binary signals that have
changed status during a disturbance. This information is
used in the short perspective to get information via the local
HMI in a straightforward way.
There are three LEDs on the local HMI (green, yellow and
red), which will display status information about the IED and
the Disturbance recorder function (triggered).
The Indication list function shows all selected binary input
signals connected to the Disturbance recorder function that
have changed status during a disturbance.
Event recorder DRPRDRE
Quick, complete and reliable information about disturbances
in the primary and/or in the secondary system is vital, for
example, time-tagged events logged during disturbances.
This information is used for different purposes in the short
term (for example corrective actions) and in the long term
(for example functional analysis).
The event recorder logs all selected binary input signals
connected to the Disturbance recorder function. Each
recording can contain up to 1056 time-tagged events.
The event recorder information is available for the
disturbances locally in the IED.
Trip value recorder DRPRDRE
Information about the pre-fault and fault values for currents
and voltages are vital for the disturbance evaluation.
The Trip value recorder calculates the values of all selected
analog input signals connected to the Disturbance recorder
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function. The result is magnitude and phase angle before
and during the fault for each analog input signal.
The trip value recorder information is available for the
disturbances locally in the IED.
The trip value recorder information is an integrated part of
the disturbance record (Comtrade file).
Disturbance recorder DRPRDRE
The Disturbance recorder function supplies fast, complete
and reliable information about disturbances in the power
system. It facilitates understanding system behavior and
related primary and secondary equipment during and after a
disturbance. Recorded information is used for different
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purposes in the short perspective (for example corrective
actions) and long perspective (for example functional
analysis).
The Disturbance recorder acquires sampled data from
selected analog and binary signals connected to the
Disturbance recorder function (maximum 40 analog and 352
binary signals). The binary signals available are the same
as for the event recorder function.
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The function is characterized by great flexibility and is not
dependent on the operation of protection functions. It can
record disturbances not detected by protection functions.
Up to ten seconds of data before the trigger instant can be
saved in the disturbance file.
The disturbance recorder information for up to 200
disturbances are saved in the IED and the local HMI is used
to view the list of recordings .
Event function
When using a Substation Automation system with LON or
SPA communication, time-tagged events can be sent at
change or cyclically from the IED to the station level. These
events are created from any available signal in the IED that
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is connected to the Event function (EVENT). The EVENT
function block is used for LON and SPA communication.
Analog, integer and double indication values are also
transferred through the EVENT function.
Generic communication function for Single Point
indication SPGAPC
Generic communication function for Single Point indication
(SPGAPC) is used to send one single logical signal to other
systems or equipment in the substation.
Generic communication function for measured
values MVGAPC
Generic communication function for measured values
M12128-3 v7
(MVGAPC) function is used to send the instantaneous value
of an analog signal to other systems or equipment in the
substation. It can also be used inside the same IED, to
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1MRK 505 379-BEN R
M12156-3 v13
M12805-6 v11
SEMOD55713-5 v8
SEMOD55872-5 v10
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