Metering; Human Machine Interface - ABB REL670 Product Manual

Line distance protection REL670 2.2
Product version: 2.2
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

16. 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
Power system measurement (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,
44
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
(STARTACC and STOPACC) and
reset to initial values with RSTACC input.
The maximum demand for active and reactive powers are
calculated for the set time interval
updated every minute through output channels. The active and
reactive maximum power demand values are calculated for
both forward and reverse direction and these values can be
reset with RSTDMD input.

17. Human machine interface

Local HMI
IEC13000239 V3 EN
Figure 12. Local human-machine interface
The LHMI of the IED contains the following elements:
1MRK 506 372-BEN -
EnaAcc setting and it can be
tEnergy and these values are
IEC13000239-3-en.vsd
ABB