Comprises of PWM power source

Standard meter configuration: wide-measurement-range,class0.05/0.1

Voltage measurement range:0-220v,0-120%, adjustment fineness:0.01 full range

Current measurement range:0-100a,0-120%, adjustment fineness:0.0001

Phase shift:0-360°C, adjustment fineness:0.1

Frequency:45hz-6hz, adjustment fineness:0.1hz

Output waveform distortion: both voltage and current <0.5%

Output voltage, current, and power stability:<0.05%/3min

Output capacity: current:1000va(120va); voltage:400va

Load characteristics: resistive, inductive, and capacitive (<4uf)

Starting current output:5ma, accuracty:5%, starting power: accuracy 5%

3~60 meters testing stations are available

Basic tests: intrinsic error test, hidden acction test, start test, standard deviation test

Input power supply:220va±10%,50hz, ma. Power consumption:1,500va

On-line calibration can be conducted on 1p2w single-loop watthour meter and also off-line calibration on the three kind of loops such as 1-2, 4-3, 1-2-4-3 (or 1-4,3-2,1-4-3-2) can be performed