Technical Data - ABB RELION REX640 Technical Manual

1MRS759142 C
8.1.11.8
8.1.12
8.1.12.1
8.1.12.2
8.1.12.3
REX640
Technical Manual

Technical data

Table 1272: VSMSQI Technical data
Characteristic
Operation accuracy
Suppression of harmonics
Three-phase power and energy measurement PEMMXU
Identification
Function description
Three-phase power and energy
measurement
Function block
GUID-5920A797-CA4B-4564-B2A3-C91FF4A96042 V1 EN
Figure 711: Function block
Functionality
The three-phase power and energy measurement function PEMMXU calculates
energy and power from the available current and voltage inputs. The function stores
the accumulated values of the real and reactive energy in both directions, and presents
these values as numerical and pulse outputs.
PEMMXU provides pulse outputs EAFPULSE, EARPULSE, ERFPULSE and
ERRPULSE which are activated based on the calculated values of forward and
reverse, active and reactive accumulated energy. The activation of the pulse depends
on the Pulse quantity setting. For example, if Pulse quantity is set as "10000" Wh,
EAFPULSE is activated every time accumulated energy EA_FWD_ACM increases
Measurement functions
Value
Depending on the frequency of the voltage
measured: f ±2 Hz
n
At voltages in range 0.01...1.15 × U
±1.0% or ±0.002 × U
DFT: -50 dB at f = n × f
IEC 61850 IEC 60617
identification identification
PEMMXU P, E
Section 8
n
n
, where n = 2, 3, 4, 5,...
n
ANSI/IEEE C37.2
device number
P, E
1327