Function For Energy Calculation And Demand Handling Etpmmtr; Identification; Application - Hitachi Relion 670 Series Applications Manual

Section 17
Metering
17.2 Function for energy calculation and demand handling
ETPMMTR
17.2.1

Identification

Function description
Function for energy calculation and
demand handling
17.2.2

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 104.
IEC13000190 V2 EN-US
Figure 104:
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.
264
IEC 61850
identification
ETPMMTR
CVMMXN
P_ INST
Q_ INST
Connection of energy calculation and demand handling function ETPMMTR to the
measurements function (CVMMXN)
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IEC 60617 ANSI/IEEE C37.2
identification device number
W_Varh -
ETPMMTR
P
Q
STARTACC
STOPACC
RSTACC
RSTDMD
IEC130 00190-2-en.vsdx
Phasor measurement unit RES670
1MRK511407-UUS Rev. N
SEMOD153638-1 v2
SEMOD175537-2 v4
SEMOD175546-4 v6
Application manual