ABB Relion 611 Series, Technical Manual

Page: 377 / 536

7.1.7.5 Monitored data
Table 426: RESVMMXU Monitored data
Name Type Values (Range) Unit Description
Uo-kV FLOAT32 0.00...4.00 xUn Measured residual
voltage
BLOCK BOOLEAN 0=False
1=True
Block signal for all binary
outputs
HIGH_ALARM BOOLEAN 0=False
1=True
High alarm
HIGH_WARN BOOLEAN 0=False
1=True
High warning
U_INST_RES FLOAT32 0.00...4.00 xUn Residual voltage
Amplitude, magnitude of
instantaneous value
U_ANGL_RES FLOAT32 -180.00...180.00 deg Residual voltage angle
U_DB_RES FLOAT32 0.00...4.00 xUn Residual voltage
Amplitude, magnitude of
reported value
U_DMD_RES FLOAT32 0.00...4.00 xUn Demand value of residual
voltage
U_RANGE_RES Enum 0=normal
1=high
2=low
3=high-high
4=low-low
Residual voltage
Amplitude range
7.1.7.6 Technical data
Table 427: RESVMMXU Technical data
Characteristic Value
Operation accuracy Depending on the frequency of the measured
voltage: f/f
n
= ±2 Hz
±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
7.1.7.7 Technical revision history
Table 428: RESVMMXU Technical revision history
Technical revision Change
B -
C Residual voltage angle and demand value added
to Monitored data view
D Internal improvement
E Internal improvement
1MRS757454 D
Section 7
Measurement functions
611 series 371
Technical Manual