Features
- Close-link and ordinary calibration both can be used, ordinary calibration can be used to test single / three phase active and reactive energy meter (up to 0.5 class), close-link calibration can be used to test single / three phase active and reactive energy meter (up to 1 class).
- The bench can test the converted quantity which is caused by negative phase, voltage unbalance, harmonic wave and so on.
- The bench can auto-calibrate starting, no load, basic error and calibration tolerance and 24 deflection.
- Close-link calibration is using insulate current transformer and suitable for close-link energy meter.
Specification
- Accuracy of test bench :
- 0.2% (close - link calibration, current : 0.25A - 120A)
- 0.05 / 0.1% (ordinary calibration)
- Reference standard meter HC 3100 three phase multi-functions precision power testing instrument Accuracy : 0.05%
- Isolated current transformer equipment PTC-9503B insulate current inductance
- Accuracy : 0.1% (cosØ = 0.5C - 1 - 0.5L, 0.25 - 120A)
- Primary current : 3 * 0.25 - 120A
- Secondary current : 3 * 0.25 - 120A
- Output power : 30VA (max. 100A)
- Voltage amplifier:
- Output voltage : 30 - 400V (phase - neutral); 50 - 600V (phase - phase)
- Output maximum power : 800VA
- Current amplifier :
- Output current : 1mA - 120A
- Output maximum power : 1500VA
- For voltage / current amplifier
- Resolution : 0.01%
- Stability < 0.05% / 3 min (time base 5S)
- Distortion factor < 0.5% at linear load
- Frequency : 45 - 65 Hz
- Power efficiency > 85%
- Electronic overload protection and security for open current circuit.
- Phase Angle : 0o - 360o, Resolution of phase angle setting : 0.1o
- Output frequency : 45 - 65 Hz; resolution : 0.01 Hz
- Harmonic wave output :
- 2 - 21 sub - harmonic wave, contents < 40%
- 3, 5, 7 sub - harmonic wave coupling, total content < 40%
- Phase angle control (odd sub - harmonic wave)
- Wave group control (sub - harmonic wave)
- Output stability of power < 0.05% (180S)
- Input power : 3 * 220V / 380V(Y) +15%, 50 / 60 Hz; Power consumption : max. 6000VA
- Dimension :
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