ABB Relion 670 Series Product Manual page 43

Bay control REC670
Version 2.2
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
352 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 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 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
(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.
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
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
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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.
Insulation supervision for gas medium function
SSIMG
Insulation supervision for gas medium (SSIMG) is used
for monitoring the circuit breaker condition. Binary
information based on the gas pressure in the circuit
breaker can be used as input to the function. In addition,
the function can be used with an analog value of gas
pressure and temperature of the insulation medium and
binary inputs. The function generates alarms based on
received information.
Insulation supervision for liquid medium SSIML
Insulation supervision for liquid medium (SSIML) is used
for monitoring the oil insulated device condition. For
example, transformers, shunt reactors, and so on. Binary
information based on the liquid level in the circuit
breaker can be used as input to the function. In addition,
the function can be used with an analog value of liquid
level and temperature of the insulation medium and
binary inputs. The function generates alarms based on
the received information.
Circuit breaker condition monitoring SSCBR
The circuit breaker condition 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. Each SCCBR
function instance is made to be used with a 1-pole, 1-
phase breaker.
Fault locator LMBRFLO
The accurate fault locator is an essential component to
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
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 511 404-BEN N
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GUID-3B1A665F-60A5-4343-85F4-AD9C066CBE8D v8
GUID-E1FD74C3-B9B6-4E11-AA1B-7E7F822FB4DD v14
M13970-3 v13
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