ABB REM630 - Page 53

Table 92. Three-phase voltage measurement (VPHMMXU )
Characteristic Value
Operation accuracy 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
n
)
Suppression of harmonics DFT: -50dB at f = n × f
n
, where n = 2, 3, 4, 5,
…
RMS: No suppression
Table 93. Residual current measurement (RESCMMXU)
Characteristic
Value
Operation accuracy 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
n
)
Suppression of harmonics DFT: -50 dB at f = n x f
n
, where n = 2, 3, 4, 5,
…
RMS: No suppression
Table 94. Residual voltage measurement (RESVMMXU)
Characteristic
Value
Operation accuracy At the frequency f = f
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
Motor Protection and Control 1MRS756977 D
REM630
Product version: 1.1 Issued: 2011-05-18
ABB 53