Metering; Human Machine Interface; Basic Ied Functions - ABB RES670 Product Manual

Phasor measurement unit RES670 2.2
Product version: 2.2

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
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, 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
tEnergy . The integration of active and reactive energy
time
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
setting and it can be reset to initial values with RSTACC
input.
The maximum demand for active and reactive powers are
calculated for the set time interval
are 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.

15. Human machine interface

Local HMI
28
M13394-3 v7
GUID-6898E29B-DA70-421C-837C-1BBED8C63A7A v3
EnaAcc
tEnergy and these values
IEC13000239 V3 EN-US
Figure 4. Local human-machine interface
The LHMI of the IED contains the following elements
• Graphical display capable of showing a user defined single
line diagram and provide an interface for controlling
switchgear.
• Navigation buttons and five user defined command buttons
to shortcuts in the HMI tree or simple commands.
• 15 user defined three-color LEDs.
• Communication port for PCM600.
The LHMI is used for setting, monitoring and controlling.

16. Basic IED functions

Time synchronization
The time synchronization source selector is used to select a
common source of absolute time for the IED. For RES670 as
a Phasor Measurement Unit (PMU) an accurate time
synchronization is essential to allow the comparison of
phasors measured at different locations in a Wide Area
Monitoring System (WAMS). For an IED as part of a
protection system, time synchronization is required to
compare event and disturbance data between all IEDs in a
substation automation system. A common source shall be
used for IED and merging unit when IEC 61850-9-2LE
process bus communication is used.
1MRK 511 410-BEN B
AMU0600442 v15
IEC13000239-3-en.vsd
M11344-3 v11
ABB