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.
15.2.3
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 327:
ETPMMTR function block
15.2.4
Signals
PID-6872-INPUTSIGNALS v3
Table 458:
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 15
1MRK 506 382-UEN A
Metering
646
Line distance protection REL650 2.2 IEC
Technical manual
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