Three Phase Multifunction Energy Meter measures single and three phase supplies, while displaying all the fundamental electrical parameters. With built-in pulse and RS485 outputs, the meter measures both single and three phase supplies. This unit is best suited for sub-billing and energy management.
Three Phase Energy Meter
Description
Voltage and Current:
Phase to neutral voltages 100 to 289V a.c. (not for 3p3w supplies)
Voltages between phases 173 to 500V a.c. (3p supplies only)
- Basic current (Ib): 10A
- Max current : 100A
- Min. Current: 5% of Ib
- Starting current: 0.4% of Ib
Percentage total voltage harmonic distortion (THD%) for each phase to N ( not for 3p3w supplies)
Percentage voltage THD% between phases (three phase supplies only)
Current THD% for each phase
Accuracy:
- Voltage 0·5% of range maximum
- Current 0·5% of nominal
- Frequency 0·2% of mid-frequency
- Power factor 1% of unity (0.01)
- Active power (W) ±1% of range maximum
- Reactive power (VAr) ±1% of range maximum
- Apparent power (VA) ±1% of range maximum
- Active energy (Wh) Class 1 IEC 62053-21
- Reactive energy (VARh) ±1% of range maximum
- Total harmonic distortion 1% up to 31st harmonic
- Temperature co-efficient Voltage and current = 0.013%/°C typical
- Active energy = 0·018%/°C, typical
- Response time to step input 1s, typical, to >99% of final reading, at 50 Hz.
Power factor, Frequency, and Max. Demand:
- Frequency in Hz
- Maximum demanded power since last Demand reset Power factor
- Maximum neutral demand current, since the last Demand reset (for 3p4w supply only)
Instantaneous power:
- Power 0 to 99999 W
- Reactive Power 0 to 99999 VAr
- Volt-amps 0 to 99999 VA
Energy Measurements:
- Imported active energy 0 to 999999.99 kWh
- Exported active energy 0 to 999999.99 kWh
- Imported reactive energy 0 to 999999.99 kVArh
- Exported reactive energy 0 to 999999.99 kVArh
- Total active energy 0 to 999999.99 kWh
- Total reactive energy 0 to 999999.99 kVArh
Reference Conditions of Influence Quantities:
- Ambient temperature 23°C ±1°C
- Input frequency 50 or 60Hz ±2%
- Input waveform Sinusoidal (distortion factor < 0·005)
- Magnetic field of external origin Terrestrial flux
Environment:
- Operating temperature -25°C to +55°C*
- Storage temperature -40°C to +70°C*
- Relative humidity 0 to 90%, non-condensing
- Altitude Up to 2000m
- Warm up time 1 minute
- Vibration 10Hz to 50Hz, IEC 60068-2-6, 2g
