the power analyzer and the power supply, and take the largest error for calculation. The
power accuracy is obtained by the following formula:
𝛿 =
|𝑃 − 𝑃 |
𝑃
× 100%
And:
•
Output Characteristics
Connect the input side of the AC/DC source to the power grid, so that the input voltage is
within the operating voltage range of the power supply, and the output side is connected to
a pure resistive load. Set the output voltage value to make the power supply work within
the rated output voltage range, read and record the output measurement value, efficiency,
and PF value on the power analyzer.
•
Load Regulation
Connect the input side of the AC/DC source to the power grid, so that the input voltage is
within the operating voltage range of the power supply, and the output side is connected to
a pure resistive load. Set the output voltage value to make the power supply work within
the rated output voltage range, read and record the output voltage measurement value on
the power analyzer when there is no-load and On-load, the load adjustment rate is obtained
by the following formula:
𝐿 =
|𝑈 − 𝑈 |
𝑈
× 100%
And:
•
Voltage THD
Connect the input side of the AC/DC source to the power grid, so that the input voltage is
within the operating voltage range of the power supply, and the output side is connected to
a pure resistive load. Set the output voltage value to make the power supply work within
𝛿
𝑃
——
Power Accuracy;
𝑃
1
——
Power value measured via power analyzer, kW;
𝑃
0
——
Power value displayed on power supply, kW;
𝑃
𝑁
——
Rated Power, kW;
𝐿
——Voltage Accuracy;
𝑈
1
——On-load voltage, V;
𝑈
0
——No-load voltage, V;
Un——Rated voltage, V;