Measurement Functions; Three-Phase Current Measurement (Cmmxu); Current Sequence Components (Csmsqi); Three-Phase Voltage Measurement (Vmmxu) - ABB REU615 Product Manual

Voltage Protection and Control
REU615
Product version: 4.0

Measurement functions

Table 55. Three-phase current measurement (CMMXU)
Characteristic
Operation accuracy
Suppression of harmonics
Table 56. Current sequence components (CSMSQI)
Characteristic
Operation accuracy
Suppression of harmonics
Table 57. Three-phase voltage measurement (VMMXU)
Characteristic
Operation accuracy
Suppression of harmonics
Table 58. Voltage sequence components (VSMSQI)
Characteristic
Operation accuracy
Suppression of harmonics
40
Value
Depending on the frequency of the current measured: f
±2 Hz
±0.5% or ±0.002 x I
n
(at currents in the range of 0.01...4.00 x I
DFT: -50 dB at f = n x f , where n = 2, 3, 4, 5,...
n
RMS: No suppression
Value
Depending on the frequency of the current measured: f/f
= ±2 Hz
±1.0% or ±0.002 x I
n
at currents in the range of 0.01...4.00 x I
DFT: -50 dB at f = n x f , where n = 2, 3, 4, 5,...
n
Value
Depending on the frequency of the voltage measured: f
±2 Hz
At voltages in range 0.01...1.15 x U
±0.5% or ±0.002 x U
n
DFT: -50 dB at f = n x f , where n = 2, 3, 4, 5,...
n
RMS: No suppression
Value
Depending on the frequency of the voltage measured: f
±2 Hz
At voltages in range 0.01...1.15 x U
±1.0% or ±0.002 x U
n
DFT: -50 dB at f = n x f , where n = 2, 3, 4, 5,...
n
1MRS757058 D
n
)
n
n
n
n
n
n
n
ABB