10 Technical data
10.1 Hardware
10.1.1 Measurements
10.1.1.1 Current measurement
Table. 10.1.1.1 - 419. Technical data for the current measurement module.
Connections
Measurement channels/CT
inputs
Three phase current inputs: IL1 (A), IL2 (B), IL3 (C)
Two residual current inputs: Coarse residual current input I01, Fine residual current input
I02
Phase current inputs (A, B, C)
Sample rate
64 samples per cycle in frequency range 6...75Hz
Rated current I
N
5 A (configurable 0.2…10 A)
Thermal withstand
20 A (continuous)
100 A (for 10 s)
500 A (for 1 s)
1250 A (for 0.01 s)
Frequency measurement range
From 6…75Hz fundamental, up to the 31
st
harmonic current
Current measurement range
25 mA…250 A (RMS)
Current measurement
inaccuracy
0.005…4.000 × I
N
< ±0.5 % or < ±15 mA
4…20 × I
N
< ±0.5 %
20…50 × I
N
< ±1.0 %
Angle measurement inaccuracy
< ±0.2° (I> 0.1 A)
< ±1.0° (I
≤
0.1 A)
Burden (50/60 Hz)
<0.1 VA
Transient overreach
<8 %
Coarse residual current input (I01)
Rated current I
N
1 A (configurable 0.1…10 A)
Thermal withstand
25 A (continuous)
100 A (for 10 s)
500 A (for 1 s)
1250 A (for 0.01 s)
Frequency measurement range
From 6…75 Hz fundamental, up to the 31
st
harmonic current
Current measurement range
5 mA…150 A (RMS)
Current measurement
inaccuracy
0.002…10.000 × I
N
< ±0.5 % or < ±3 mA
10…150 × I
N
< ±0.5 %
Genera
Generattor Commander
or Commander
Instruction manual
Version: 2.07
© Arcteq Relays Ltd
IM00001
521
Summary of Contents for Generator Commander
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