Angle measurement inaccuracy
< ±0.2° (I> 0.05 A)
< ±1.0° (I
≤
0.05 A)
Burden (50/60Hz)
<0.1 VA
Transient overreach
<5 %
Fine residual current input (I02)
Rated current I
N
0.2 A (configurable 0.001…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
1 mA…75 A (RMS)
Current measurement
inaccuracy
0.002…25.000 × I
N
< ±0.5 % or < ±0.6 mA
25…375 × I
N
< ±1.0 %
Angle measurement inaccuracy
< ±0.2° (I> 0.01 A)
< ±1.0° (I
≤
0.01 A)
Burden (50/60Hz)
<0.1 VA
Transient overreach
<5 %
Terminal block connection
Terminal block
Phoenix Contact FRONT 4-H-6,35
Solid or stranded wire
Maximum wire diameter
4 mm
2
NO
NOTE!
TE!
Current measurement accuracy has been verified with 50/60 Hz.
The amplitude difference is 0.2 % and the angle difference is 0.5 degrees higher at 16.67 Hz and other
frequencies.
9.1.1.2 Voltage measurement
Table. 9.1.1.2 - 376. Technical data for the voltage measurement module.
Connection
Measurement channels/VT inputs
4 independent VT inputs (U1, U2, U3 and U4)
Measurement
Sample rate
64 samples per cycle in frequency range 6...75Hz
Voltage measuring range
0.50…480.00 V (RMS)
Voltage measurement inaccuracy
1…2 V ±1.5 %
2…10 V ±0.5 %
10…480 V ±0.35 %
A
AQ
Q-M257
-M257
Instruction manual
Version: 2.07
© Arcteq Relays Ltd
IM00021
471
Summary of Contents for AQ-M257
Page 1: ...AQ M257 Motor protection IED Instruction manual...
Page 2: ......
