Test Bench
Auto-Calibration System
Accuracy class: 0.1/0.2 class
Standard power testing equipment:
HC 3801 single phase standard energy meter
Accuracy class: 0.05 /0.1
Standard CT: 0.01/0.02
Output voltage: 0-220V(240V option); Range: 0-120%
Fine adjustment: 0.01%
Output current: 0-100A; (option for 200A)
Fine adjustment: 0.0001A (min)

Range of phase: 0-360 fine adjustment: 0.1
Frequency: 45Hz-65Hz; Fine adjustment: 0.01Hz
Waveform distortion coefficient: Voltage/ current < 0.5%
Output stability of voltage, current, power: <0.05% (180S)
Output capacity (each phase): Current: 800VA (120A), voltage: 400VA (24 meters)
Load: Capacitance, resistance, inductance (≤ 4μ F)
Starting current output: 10mA (min), accuracy: 5%, starting power: Accuracy 10%
Numbers of calibrated energy meter: 24 (6/12/24/32/40/48 on requested)
Testing function: Basic error test; No load test; Starting test; Calibration tolerance test
Input power: 220V AC 10%, 50Hz; Max. Power consumption: 1500VA 48 meters

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