ABB REC650 Product Manual page 22

Bay control REC650 2.2
Product version: 2.2
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, 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 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 is used as
input signals to the function. In addition, 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 oil level in the oil insulated devices are used as
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M12805-6 v11
SEMOD55713-5 v8
SEMOD55872-5 v10
SEMOD52450-4 v8
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input signals to the function. In addition, the function
generates alarms based on the received information.
Circuit breaker condition monitoring SSCBR
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) currents, is used to exactly calculate
the fault position. The fault can be recalculated with new
source data at the actual fault to further increase the
accuracy.
Especially on heavily loaded long lines, where the source
voltage angles can be up to 35-40 degrees apart, the
accuracy can be still maintained with the advanced
compensation included in fault locator.
Event counter with limit supervison L4UFCNT
The Limit counter (L4UFCNT) provides a settable counter with
four independent limits where the number of positive and/or
negative flanks on the input signal are counted against the
setting values for limits. The output for each limit is activated
when the counted value reaches that limit.
Overflow indication is included for each up-counter.
Running hour-meter TEILGAPC
The Running hour-meter (TEILGAPC) function is a function
that accumulates the elapsed time when a given binary signal
has been high.
The main features of TEILGAPC are:
• Applicable to very long time accumulation (≤ 99999.9
hours)
• Supervision of limit transgression conditions and rollover/
overflow
• Possibility to define a warning and alarm with the
resolution of 0.1 hours
• Retain any saved accumulation value at a restart
• Possibilities for blocking and reset
• Possibility for manual addition of accumulated time
• Reporting of the accumulated time
1MRK 511 426-BEN B
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