•
Current Accuracy
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 current range, read and record the output current measurement value on
the power analyzer and the power supply, and take the largest error for calculation.
The current accuracy is obtained by the following formula:
And:
•
Frequency Accuracy
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. After setting the voltage value,
change the frequency setting value of the power supply, read and record the output
frequency measurement value of the power analyzer and the power supply, and take the
one with the largest error for calculation. The frequency accuracy is obtained by the
following formula:
𝛿 =
|𝑓 − 𝑓 |
𝑓
× 100%
And
：
𝛿
——Power accuracy;
𝑓
——Frequency value measured via power analyzer, Hz
；
𝑓
——Frequency value displayed on power supply, Hz
；
𝑓
——Rated Frequency
，
Hz
；
•
Power Accuracy
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 power range, read and record the output power measurement value on
𝛿
𝐼
——Current Accuracy;
𝐼
1
——Current value measured via power analyzer, A;
𝐼
0
——Current value displayed on power supply, A;
𝐼
𝑁
——Rated Current, A;