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 EnaAcc 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 tEnergy and these values 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.
16.2.3 Function block
SEMOD175502-4 v5
ETPMMTR
P*
Q*
STARTACC
STOPACC
RSTACC
RSTDMD
ACCINPRG
EAFPULSE
EARPULSE
ERFPULSE
ERRPULSE
EAFALM
EARALM
ERFALM
ERRALM
EAFACC
EARACC
ERFACC
ERRACC
MAXPAFD
MAXPARD
MAXPRFD
MAXPRRD
IEC14000019-1-en.vsd
IEC14000019 V1 EN-US
Figure 303: ETPMMTR function block
16.2.4 Signals
PID-6872-INPUTSIGNALS v3
Table 433: ETPMMTR Input signals
Name
Type Default Description
P REAL 0 Measured active power
Q REAL 0 Measured reactive power
STARTACC BOOLEAN 0 Start to accumulate energy values
STOPACC BOOLEAN 0 Stop to accumulate energy values.
RSTACC BOOLEAN 0 Reset of accumulated enery reading
RSTDMD BOOLEAN 0 Reset of maximum demand reading
Section 16 1MRK 505 394-UEN A
Metering
614 Line differential protection RED650 2.2 IEC
Technical manual
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