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Voltage
Nominal ±2%
Current
10 .. 100% of nominal
Reactive power factor
1 .. 0.8 leading or lagging
Apparent Power (VA)
10 .. 100% of nominal
Voltage
Nominal ±2%
Current
10 .. 100% of nominal
Power factor
1 .. 0.8 leading or lagging
Voltage
Nominal value ±2%
Current
40 .. 100% of nominal
Total Harmonic Distortion
0-30%
Reference conditions of influence quantities
Values that quantities which affect measurement errors to a minor degree have to be for the
intrinsic (headline) errors for measured quantities to apply.
Ambient temperature
23°C
Input frequency
50 or 60 Hz ±2%
Input waveform
Sinusoidal (distortion factor 0.005)
Auxiliary supply voltage
Nominal ±1%
Auxiliary supply frequency
Nominal ±1%
Auxiliary supply distortion factor
0.05
Magnetic field of external origin
Terrestrial flux
Nominal range of use of influence quantities for measurands
Values of quantities which affect measurement errors to a minor degree for which the
magnitude of the measurement error is defined in this specification.
Voltage
50 .. 120% of upper value
Current
5 .. 120% of nominal
Frequency
Nominal ±10%
Power factor
0.5 lagging .. 1 .. 0.8 leading, importing
(active/reactive as appropriate)
Temperature
-20 to +70°C
Input waveform distortion
20% 3rd Harmonic distortion
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