ABB RELION Series, Technical Manual

Page: 574 / 804

Name Type Values (Range) Unit Description
U_INST_CA FLOAT32 0.00...4.00 xUn U31 Amplitude,
magnitude of
instantaneous value
U_ANGL_CA FLOAT32 -180.00...180.00 deg U31 angle
U_DB_CA FLOAT32 0.00...4.00 xUn U31 Amplitude,
magnitude of reported
value
U_DMD_CA FLOAT32 0.00...4.00 xUn Demand value of U31
voltage
U_RANGE_CA Enum 0=normal
1=high
2=low
3=high-high
4=low-low
U31 Amplitude range
U_INST_A FLOAT32 0.00...5.00 xUn UL1 Amplitude,
magnitude of
instantaneous value
U_ANGL_A FLOAT32 -180.00...180.00 deg UL1 angle
U_DMD_A FLOAT32 0.00...5.00 xUn Demand value of UL1
voltage
U_INST_B FLOAT32 0.00...5.00 xUn UL2 Amplitude,
magnitude of
instantaneous value
U_ANGL_B FLOAT32 -180.00...180.00 deg UL2 angle
U_DMD_B FLOAT32 0.00...5.00 xUn Demand value of UL2
voltage
U_INST_C FLOAT32 0.00...5.00 xUn UL3 Amplitude,
magnitude of
instantaneous value
U_ANGL_C FLOAT32 -180.00...180.00 deg UL3 angle
U_DMD_C FLOAT32 0.00...5.00 xUn Demand value of UL3
voltage
8.1.5.6 Technical data
Table 579: VMMXU 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
±0.5% or ±0.002 × U
n
Suppression of harmonics DFT: -50 dB at f = n × f
n
, where n = 2, 3, 4, 5,…
RMS: No suppression
Section 8
1MRS758755 A
Measurement functions
568 REC615 and RER615
Technical Manual