ABB RELION 670 Series Product Manual page 32

Bay control REC670 2.1 IEC
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 recorder function (maximum 40 analog and
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 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.
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 is connected to the Event function (EVENT). The
event function block is used for LON and SPA
communication.
Analog and double indication values are also transferred
through 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 Value
MVGAPC
Generic communication function for Measured Value
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 attach a RANGE aspect to an analog value and to
permit measurement supervision on that value.
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Measured value expander block RANGE_XP
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 (MVGAPC) are provided with measurement
M12156-3 v10
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 (RANGE_XP) 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 limit or above
high-high limit. The output signals can be used as
conditions in the configurable logic or for alarming
purpose.
Gas medium supervision SSIMG
Gas medium supervision SSIMG is used for monitoring
the circuit breaker condition. Binary information based
on the gas pressure in the circuit breaker is used as
input signals to the function. In addition, the function
generates alarms based on received information.
Liquid medium supervision SSIML
Liquid medium supervision SSIML is used for monitoring
the circuit breaker condition. Binary information based
on the oil level in the circuit breaker is used as input
signals to the function. In addition, the function
generates alarms based on received information.
Breaker monitoring SSCBR
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The breaker monitoring function SSCBR is used to
monitor different parameters of the breaker condition.
The breaker requires maintenance when the number of
operations reaches a predefined value. For a proper
functioning of the circuit breaker, it is essential to
monitor the circuit breaker operation, spring charge
indication or breaker wear, travel time, number of
operation cycles and estimate the accumulated energy
during arcing periods.
Fault locator LMBRFLO
The accurate fault locator is an essential component to
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minimize the outages after a persistent fault and/or to
pin-point a weak spot on the line.
The fault locator is an impedance measuring function
giving the distance to the fault in km, miles or % of line
length. The main advantage is the high accuracy
SEMOD55872-5 v9
achieved by compensating for load current and for the
mutual zero-sequence effect on double circuit lines.
The compensation includes setting of the remote and
local sources and calculation of the distribution of fault
currents from each side. This distribution of fault
current, together with recorded load (pre-fault)
1MRK 511 361-BEN D
SEMOD52450-4 v7
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