ABB Relion 670 Series Product Manual page 16

Phasor measurement unit RES670
Pre-configured
Product version: 1.2
conditions, recording times, and large storage
capacity.
A disturbance is defined as an activation of an
input to the AxRADR or BxRBDR function blocks,
which are set to trigger the disturbance recorder.
All signals from start of pre-fault time to the end
of post-fault time will be included in the recording.
Every disturbance report recording is saved in the
IED in the standard Comtrade 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 may 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.
The event list logs all binary input signals
connected to the Disturbance report function. The
list may contain up to 1000 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
report function (trigged).
The Indication list function shows all selected
binary input signals connected to the Disturbance
report 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
16
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 report
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 report 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 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 report function
(maximum 40 analog and 96 binary signals). The
binary signals available are the same as for the
event recorder function.
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
1MRK 511 266-BEN -
ABB