SY8320E Three Phase Close Link Energy Meter Test Bench is used to calibrate three phase, single phase, active or reactive energy meter (kWh meter, kilowatt hour meter, watt-hour meter, power meter).
1. Accuracy class: 0.2 class (close-link calibration, the range of current: 0.25A-100A)
0.05/0.1 class (ordinary calibration)
2. Standard power testing equipment:
Three phase multi-functions precision power reference meter
Accuracy class:0.05/0.1 class
3. Isolated current transformer equipment::
Insulate current inductance
Accuracy class: 0.1 (COSφ=0.5C-1-0.5L, 0.25-100A)
Primary current: 3×0.25-100A secondary current: 3×0.25-100A
Output power: 30VA (MAX, 100A)
4. Output voltage: 3×57.7/100/220/380VY/△; range: 0-120%
Fine adjustment: 0.01%
5. Output current:: 3×0.1-100A
Fine adjustment: 0.0001A (min)
6. Range of phase: 0-360° fine adjustment: 0.1°
7. Frequency: 45Hz-65Hz; fine adjustment: 0.01Hz
8. Waveform distortion coefficient: voltage/ current < 0.5%
9. Output stability of voltage, current, power: <0.05% (180S)
10. Output capacity (each phase): current: 900VA (120A), voltage: 300VA (8 meters)
Load: capacitance, resistance, inductance (≤4μF)
11. 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)
12. Starting current output: 1mA (min), accuracy: 5%, starting power: accuracy 5%
13. Numbers of calibrated energy meter: 8 (16 on requested)
14. Testing function: Basic error test; no load test; starting test; calibration tolerance test; harmonic test
15. Input power: 3×220V/380V (Y) + 10%, 50Hz; max. Power consumption: 1800VA (8 meters)
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