62
R E F61 5 A N S I 5.0 FP1
FEED ER P R OT EC T I O N A N D CO N T R O L
Measurement functions
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Table 104. Three-phase current measurement (CMMXU)
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Table 105. Sequence current measurement (CSMSQI)
—
Table 106. Residual current measurement (RESCMMXU)
—
Table 107. Three-phase voltage measurement (VMMXU)
—
Table 108. Residual voltage measurement (RESVMMXU)
—
Table 109. Sequence voltage measurement (VSMSQI)
Characteristic
Value
Operation accuracy
Depending on the frequency of the measured current: f
n
±2 Hz
±0.5% or ±0.002 × I
n
(at currents in the range of 0.01...4.00 × I
n
)
Suppression of harmonics
DFT: -50 dB at f = n × f
n
, where n = 2, 3, 4, 5,…
RMS: No suppression
Characteristic
Value
Operation accuracy
Depending on the frequency of the measured current: f/f
n
= ±2 Hz
±1.0% or ±0.002 × I
n
at currents in the range of 0.01...4.00 × I
n
Suppression of harmonics
DFT: -50 dB at f = n × fn, where n = 2, 3, 4, 5,…
Characteristic
Value
Operation accuracy
Depending on the frequency of the current measured: f/f
n
= ±2 Hz
±0.5% or ±0.002 × I
n
at currents in the range of 0.01...4.00 × I
n
Suppression of harmonics
DFT: -50 dB at f = n × f
n
, where n = 2, 3, 4, 5,…
RMS: No suppression
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
Characteristic
Value
Operation accuracy
Depending on the frequency of the measured current: 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
Characteristic
Value
Operation accuracy
Depending on the frequency of the voltage measured: fn ±2 Hz
At voltages in range 0.01…1.15 × U
n
±1.0% or ±0.002 × U
n
Suppression of harmonics
DFT: -50 dB at f = n × f
n
, where n = 2, 3, 4, 5,…
