ABB Relion 670 Series Applications Manual page 540

Section 19
Metering
19.2 Function for energy calculation and demand handling
ETPMMTR
19.2.1 Identification
Function description
Function for energy calculation and
demand handling
19.2.2 Application
Energy calculation and demand handling function (ETPMMTR) is intended for statistics of the
forward and reverse active and reactive energy. It has a high accuracy basically given by the
measurements function (CVMMXN). This function has a site calibration possibility to further
increase the total accuracy.
The function is connected to the instantaneous outputs of (CVMMXN) as shown in figure 256.
IEC13000190 V2 EN-US
Figure 256: Connection of energy calculation and demand handling function ETPMMTR to
The energy values can be read through communication in MWh and MVArh in monitoring tool
of PCM600 and/or alternatively the values can be presented on the local HMI. The local HMI
graphical display is configured with PCM600 Graphical Display Editor tool (GDE) with a
measuring value which is selected to the active and reactive component as preferred. Also all
Accumulated Active Forward, Active Reverse, Reactive Forward and Reactive Reverse energy
values can be presented.
Maximum demand values are presented in MWh or MVArh in the same way.
Alternatively, the energy values can be presented with use of the pulse counters function
(PCGGIO). The output energy values are scaled with the pulse output setting values
EAFAccPlsQty , EARAccPlsQty , ERFAccPlsQty and ERVAccPlsQty of the energy metering
function and then the pulse counter can be set-up to present the correct values by scaling in
this function. Pulse counter values can then be presented on the local HMI in the same way
and/or sent to the SA (Substation Automation) system through communication where the
total energy then is calculated by summation of the energy pulses. This principle is good for
very high values of energy as the saturation of numbers else will limit energy integration to
about one year with 50 kV and 3000 A. After that the accumulation will start on zero again.
534
IEC 61850
identification
CVMMXN
P_ INST
Q_ INST
the measurements function (CVMMXN)
© Copyright 2017 Hitachi Power Grids. All rights reserved
IEC 60617
identification
ETPMMTR W_Varh
ETPMMTR
P
Q
STARTACC
STOPACC
RSTACC
RSTDMD
1MRK 511 401-UEN Rev. K
ANSI/IEEE C37.2
device number
-
IEC130 00190-2-en.vsdx
Bay control REC670
Application manual
SEMOD153638-1 v2
SEMOD175537-2 v4
SEMOD175546-4 v5