Transient overreach
<5%
Terminal block
Solid or stranded wire
Phoenix Contact FRONT 4H-6,35
Maximum wire diameter:
4 mm2
Note: Current measurement accuracy has been veri ed with 50Hz/60Hz.
Amplitude difference is 0.2% -and angle difference 0.5 degrees higher at 16.67Hz and other
frequencies.
9.1.1.3. Voltage measurement
Table. 9.1.1.3. - 242. Voltage measurement module
Connection
Measurement channels / VT inputs
Four independent VT inputs Ua, Ub, Uc and Ud
Measurement
Voltage measuring range
0.50-480.00V (RMS)
Voltage measurement inaccuracy
1-2V ±1.5%
2-10V ±0.5%
10-480V ±0.35%
Angle measurement inaccuracy
±0.2 degrees (15…300V)
±1.5 degrees (1…15V)
Voltage measurement bandwidth (freq.)
from 7Hz to 75Hz fundamental, up to 31st harmonic voltage
Terminal block (Phoenix Contact PC 5/ 8-STCL1-7.62)
Solid or stranded wire
6 mm
2
Input impedance
24.5-24.6 Ohm
Burder (50Hz/60Hz)
<0.02 VA
Thermal withstand
630V
RMS
continuous
Note: Voltage measurement accuracy has been veri ed with 50Hz/60Hz.
Amplitude difference is 0.2% -and angle difference 0.5 degrees higher at 16.67Hz and other
frequencies.
9.1.1.4. Frequency measurement
Table. 9.1.1.4. - 243. Frequency measurement accuracy
Frequency measurement performance
Frequency measuring range
6…75 Hz fundamental, up to 31
st
harmonic current or voltage
Inaccuracy
10 mHz
9.1.2. CPU & Power supply
9.1.2.1. Auxiliary voltage
Table. 9.1.2.1. - 244. Power supply model A
Rated values
AQ-T257
Instruction manual
Version: 2.00
© Arcteq Relays Ltd
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