Woodward HighPROTEC - Specifications of the Measured Value Acquisition

Specifications
Specifications of the Measured Value Acquisition
Phase and Ground Current Measuring
Frequency Range: 50 Hz / 60 Hz ± 10%
*1)
Accuracy: Class 0.5
Amplitude Error if I < In: ±0.5% of the rated current
*2) *3)
Amplitude Error if I > In: ±0.5% of the measured current
*2) *3)
Amplitude Error if I > 2 In: ±1.0% of the measured current
*2) *3)
Harmonics: Up to 20% 3rd harmonic ±2%
Up to 20% 5th harmonic ±2%
Frequency Influence: <±2% / Hz in the range of ±10% of the configured nominal frequency
Temperature Influence: <±1% within the range of 0°C to +60°C (+32°F to +140°F)
*1) Wide frequency range (10..70Hz) is active outside 50Hz/60Hz ±10%. DFT values get more inaccurate, protective elements which have DFT
values as input may be blocked automatically.
*2) Accuracy for True RMS values in wide frequency range: 30...70Hz same accuracy like specified above. <30Hz accuracy is <3%. True RMS
values are updated only every full cycle (period time).
*3
)
For earth current sensitive the precision does not depend on the nominal value but is referenced to 100 mA (with In =1 A) respectively. 500
mA (with In = 5 A)
Phase-to-ground and Residual Voltage Measurement
Frequency Range: 50 Hz / 60 Hz ± 10%
*1)
Accuracy for measured values: Class 0.5
Amplitude error for V<Vn: ±0.5% of rated voltage or ±0.5 V
*2)
Amplitude error for V>Vn: ±0.5% of measured voltage or ±0.5 V
*2)
Accuracy for calculated values: Class 1.0
Amplitude error for V<Vn: ±1.0% of rated voltage or ±1.0 V
*2)
Amplitude error for V>Vn: ±1.0% of calculated voltage or ±1.0 V
*2)
Harmonics: Up to 20% 3rd harmonic ±1%
Up to 20% 5th harmonic ±1%
Frequency influence: <±2% / Hz in the range of ±10% of the configured nominal frequency
Temperature influence: <±1% within the range of 0°C up to +60°C
*1) Wide frequency range (10..70Hz) is active outside 50Hz/60Hz ±10%. DFT values get more inaccurate, protective elements which have DFT
values as input may be blocked automatically.
*2) Accuracy for True RMS values in wide frequency range: 30...70Hz same accuracy like specified above. <30Hz accuracy is <3%. True RMS
values are updated only every full cycle (period time).
1340 MCDGV4 DOK-HB-MCDGV4-2E