Name
Type
Values (Range)
Unit
Description
2=low
3=high-high
4=low-low
8.1.12.8
Technical data
Table 1428: VSMSQI Technical data
Characteristic
Value
Operation accuracy
Depending on the frequency of the voltage
measured: f
n
±2 Hz
At voltages in range 0.01…1.15 × U
n
±1.0 % or ±0.002 × U
n
Suppression of harmonics
DFT: -50 dB at f = n × f
n
, where n = 2, 3, 4, 5,…
8.1.13
Three-phase power and energy measurement PEMMXU
(ANSI P, E)
8.1.13.1
Identification
Function description
IEC 61850
identification
IEC 60617
identification
ANSI/IEEE C37.2
device number
Three-phase power and energy
measurement
PEMMXU
P, E
P, E
8.1.13.2
Function block
Figure 815: Function block
8.1.13.3
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.
1MRS759142 F
Measurement functions
REX640
Technical Manual
1481