Three-Phase Voltage Measurement Vmmxu - ABB RELION SMU615 Technical Manual

1MRS758407 C
7.1.4.6 Technical data
Table 212: CMMXU Technical data
Characteristic
Operation accuracy
Suppression of harmonics
7.1.4.7 Technical revision history
Table 213: CMMXU Technical revision history
Technical revision
B
C
D
E
7.1.5

Three-phase voltage measurement VMMXU

7.1.5.1 Identification
Function description
Three-phase voltage measure-
ment
SMU615
Technical Manual
Value
Depending on the frequency of the measured
current: f ±2 Hz
n
±0.5 % or ±0.002 × I
(at currents in the range of 0.01...4.00 × I
DFT: -50 dB at f = n × f
RMS: No suppression
Change
Menu changes
Phase current angle values added to Moni-
tored data view. Minimum demand value
and time added to recorded data. Logarith-
mic demand calculation mode added and de-
mand interval setting moved under Measure-
ment menu as general setting to all demand
calculations.
Internal improvement.
Internal improvement.
IEC 61850 IEC 60617
identification identification
VMMXU 3U
Measurement functions
n
)
n
, where n = 2, 3, 4, 5,...
n
ANSI/IEEE
C37.2 device
number
3V
195