ABB Relion 670 Series Product Manual page 42

Bay control REC670
Version 2.2
parameters such as frequency, temperature and DC
battery voltage as low current values, usually in the
range 4-20 mA or 0-20 mA.
Alarm limits can be set and used as triggers, e.g. to
generate trip or alarm signals.
The function requires that the IED is equipped with the
mA input module.
Disturbance report DRPRDRE
Complete and reliable information about disturbances in
the primary and/or in the secondary system together
with continuous event-logging is accomplished by the
disturbance report functionality.
Disturbance report (DRPRDRE), always included in the
IED, acquires sampled data of all selected analog input
and binary signals connected to the function block with
a maximum of 40 analog and 352 binary signals.
The Disturbance report functionality is a common name
for several functions:
• Event list
• Indications
• Event recorder
• Trip value recorder
• Disturbance recorder
• Fault locator
• Settings information
The Disturbance report function is characterized by
great flexibility regarding configuration, starting
conditions, recording times, and large storage capacity.
A disturbance is defined as an activation of an input to
the AnRADR or BnRBDR function blocks, which are set to
trigger the disturbance recorder. All connected signals
from start of pre-fault time to the end of post-fault time
will be included in the recording. Disturbance record will
have visible settings from all function instances that are
configured in the application configuration tool.
Every disturbance report recording is saved in the IED in
the standard Comtrade format as a reader file HDR, a
configuration file CFG, and a data file DAT. 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.
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.
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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 150 time-tagged events.
The event recorder information is available for the
disturbances locally in the IED.
The event recording information is an integrated part of
the disturbance record (Comtrade file).
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 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
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