Metering; Gas Medium Supervision Ssimg; Liquid Medium Supervision Ssiml; Running Hour-Meter (Teilgapc) - ABB RED670 Product Manual

Line differential protection RED670 2.1 IEC
Product version: 2.1
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
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
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 30 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
ABB
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

14. Metering

Pulse-counter logic PCFCNT
Pulse-counter logic (PCFCNT) function counts externally
generated binary pulses, for instance pulses coming from an
external energy meter, for calculation of energy consumption
values. The pulses are captured by the binary input module and
then read by the PCFCNT function. A scaled service value is
available over the station bus. The special Binary input module
with enhanced pulse counting capabilities must be ordered to
achieve this functionality.
Function for energy calculation and demand handling
(ETPMMTR)
Measurements function block (CVMMXN) can be used to
measure active as well as reactive power values. Function for
energy calculation and demand handling (ETPMMTR) uses
measured active and reactive power as input and calculates the
accumulated active and reactive energy pulses, in forward and
reverse direction. Energy values can be read or generated as
pulses. Maximum demand power values are also calculated by
the function. This function includes zero point clamping to
remove noise from the input signal. As output of this function:
periodic energy calculations, integration of energy values,
calculation of energy pulses, alarm signals for limit violation of
energy values and maximum power demand, can be found.
The values of active and reactive energies are calculated from
the input power values by integrating them over a selected time
tEnergy . The integration of active and reactive energy values will
happen in both forward and reverse directions. These energy
values are available as output signals and also as pulse outputs.
Integration of energy values can be controlled by inputs
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