Technical Data - ABB RELION REX640 Technical Manual

Section 8
Measurement functions
8.1.5.8
8.1.6
8.1.6.1
1306
Name Type
U_DB_CA FLOAT32
U_DMD_CA FLOAT32
U_RANGE_CA Enum
U_INST_A FLOAT32
U_ANGL_A FLOAT32
U_DMD_A FLOAT32
U_INST_B FLOAT32
U_ANGL_B FLOAT32
U_DMD_B FLOAT32
U_INST_C FLOAT32
U_ANGL_C FLOAT32
U_DMD_C FLOAT32

Technical data

Table 1228: VMMXU Technical data
Characteristic
Operation accuracy
Suppression of harmonics
Single-phase voltage measurement VAMMXU
Identification
Function description
Single-phase voltage measurement
Values (Range) Unit
0.00...4.00 xUn
0.00...4.00 xUn
0=normal
1=high
2=low
3=high-high
4=low-low
0.00...5.00 xUn
-180.00...180.00 deg
0.00...5.00 xUn
0.00...5.00 xUn
-180.00...180.00 deg
0.00...5.00 xUn
0.00...5.00 xUn
-180.00...180.00 deg
0.00...5.00 xUn
Value
Depending on the frequency of the voltage
measured: f ±2 Hz
n
At voltages in range 0.01...1.15 × U
±0.5% or ±0.002 × U
DFT: -50 dB at f = n × f
RMS: No suppression
IEC 61850 IEC 60617
identification identification
VAMMXU U_A
1MRS759142 C
Description
U31 amplitude,
magnitude of reported
value
Demand value of U31
voltage
U31 amplitude range
UL1 amplitude,
magnitude of
instantaneous value
UL1 angle
Demand value of UL1
voltage
UL2 amplitude,
magnitude of
instantaneous value
UL2 angle
Demand value of UL2
voltage
UL3 amplitude,
magnitude of
instantaneous value
UL3 angle
Demand value of UL3
voltage
n
n
, where n = 2, 3, 4, 5,...
n
ANSI/IEEE C37.2
device number
V_A
REX640
Technical Manual