Three-Phase Voltage Measurement (Vppmmxu ); Residual Current Measurement (Rescmmxu); Residual Voltage Measurement (Resvmmxu) - ABB REF630 Product Manual

ABB
Feeder Protection and Control
REF630
Product version: 1.0
Table 87. Three-phase voltage measurement (VPPMMXU )
Characteristic
Operation accuracy
Suppression of harmonics
Table 88. Residual current measurement (RESCMMXU)
Characteristic
Operation accuracy
Suppression of harmonics
Table 89. Residual voltage measurement (RESVMMXU)
Characteristic
Operation accuracy
Suppression of harmonics
Value
At the frequency f = f
n
±0.5% or ±0.002 x U
n
(at voltages in the range of 0.01...1.15 × U
DFT: -50dB at f = n × f
n
...
RMS: No suppression
Value
At the frequency f = f
n
±0.5% or ±0.002 x I
n
(at currents in the range of 0.01...4.00 x I
DFT: -50dB at f = n x f
n
...
RMS: No suppression
Value
At the frequency f = f
n
±0.5% or ±0.002 × U
n
DFT: -50dB at f = n × f
n
...
RMS: No suppression
1MRS756380 A
Issued: 15.09.2009
)
n
, where n = 2, 3, 4, 5,
)
n
, where n = 2, 3, 4, 5,
, where n = 2, 3, 4, 5,
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