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
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 three
seconds of data before the trigger instant can be
saved in the disturbance file.
The disturbance recorder information for up to
100 disturbances are saved in the IED and the
local HMI is used to view the list of recordings.
Measured value expander block MVEXP
The current and voltage measurements functions
(CVMMXN, CMMXU, VMMXU and VNMMXU),
current and voltage sequence measurement
functions (CMSQI and VMSQI) and IEC 61850
generic communication I/O functions (MVGGIO)
are provided with measurement supervision
functionality. All measured values can be
supervised with four settable limits: low-low limit,
low limit, high limit and high-high limit. The
measure value expander block has been
introduced to enable translating the integer output
signal from the measuring functions to 5 binary
signals: below low-low limit, below low limit,
normal, above high-high limit or above high limit.
The output signals can be used as conditions in
the configurable logic or for alarming purpose.
Station battery supervision SPVNZBAT
The station battery supervision function
SPVNZBAT is used for monitoring battery terminal
voltage.
SPVNZBAT activates the start and alarm outputs
when the battery terminal voltage exceeds the set
upper limit or drops below the set lower limit. A
time delay for the overvoltage and undervoltage
alarms can be set according to definite time
characteristics.
In the definite time (DT) mode, SPVNZBAT
operates after a predefined operate time and
resets when the battery undervoltage or
overvoltage condition disappears after reset time.
Insulation gas monitoring function SSIMG
Insulation gas monitoring function SSIMG is used
for monitoring the circuit breaker condition. Binary
Breaker protection REQ650
1MRK 505 283-BEN -
Product version: 1.2
ABB 25
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