Reference Conditions for Accuracy |
Reference Temperature | 23°C +/- 2°C |
Input Waveform | Sinusoidal (distortion factor 0.005) |
Input Frequency | 50 or 60 Hz ±2% |
Auxiliary Supply Voltage | Rated Value ±1% |
Auxiliary Supply Frequency | Rated Value ±1% |
Accuracy |
Voltage | ±1% of range (20 - 100% of Nominal value) |
Current | ±1% of range (10 - 100% of Nominal value) |
Frequency | 0.5% of mid-frequency |
Input Voltage |
Nominal Input Voltage (AC RMS) | Phase -Neutral 290V L-N, Line-Line 500V L-L |
Max Continuous Input Voltage | 120% of the rated value |
Nominal Input Voltage Burden | < 0.3 VA approx. per phase (For external auxiliary meter) |
System PT Secondary Values | 100VLL to 500VLL programmable on-site. |
System PT Primary Values | 100VLL to 692kVLL programmable on-site. |
Input Current |
Nominal Input Current | 5A AC RMS |
System CT Secondary Values | 1A & 5A programmable on site |
System CT Primary Values | From 1A up to 9999A (for 1 or 5 Amp ) |
Max Continuous Input Current | 120% of the rated value |
Nominal Input Current Burden | < 0.2 VA approx. per phase |
Auxiliary Supply |
External Aux | 40 V - 300V AC-DC (± 5 % ) |
Self-Powered | Input voltage range from 80% to 100% of the Rated value. |
Frequency Range | 45 to 65 Hz |
VA Burden | 3 VA Approx. |
Overload Withstand |
Voltage | 2 x rated value for 1 second, repeated 10 times at 10-second intervals |
Current | 20x rated value for 1 second, repeated 5 times at 5 min intervals |
Operating Measuring Ranges |
Voltage Range With External Aux | 10 - 120% of the rated value |
Voltage Range With Self Power | 80 - 120% of the rated value |
Current Range | 10 - 120% of the rated value |
Frequency | 45 - 65 Hz |
Environmental |
Operating Temperature | -20° to +70°C |
Storage Temperature | -30°C to +80°C |
Relative Humidity | 0 to 95% non condensing |
Warm-Up Time | Minimum 3 minute |
Shock | 15g in 3 planes |
Vibration | 10.. - 55 Hz, 0.15mm amplitude |
Safety |
EMC Compatibility | Compliance with International standard IEC 61326. |
Interference Emission | IEC 61326-1 2005, Class, A |
Interference Immunity | IEC 61326-1 2005 |
Electrostatic Discharge | IEC 61000-4-2 - 4kV/8kV contact/air. (ESD) |
EM Field | IEC 61000-4-3 - 10 V/m (80 MHz to 1 GHz), 3 V/m (1.4 Ghz to 2 GHz), 1 V/m (2 GHz to 2.7 GHz) |
Burst | IEC 61000-4-4 -- 2 kV (5/50 ns, 5 kHz) |
Surge | IEC 61000-4-5 -- 1 kVLL / 2 kVLN |
Conducted RF | IEC 61000-4-5 - 3 V (150 kHz to 80 MHZ) |