Take the verification of a single-phase AC voltmeter as an example:
1. Connect the input power supply AC380V
2. Connect the AC operating voltage output power cord to the voltmeter
3. Check and confirm whether the wiring is correct, turn on the main power switch 4. Return the voltage regulator to zero, and press the "Close" button,
5. Then press the "Close" button for AC operating voltage on the panel
6. Slowly adjust the output adjustment knob to raise the voltage to the required value, and observe the voltmeter.
7. After the test is completed, first press the "Open" button for AC operating voltage on the panel, then press the main "Open" button on the panel. Then, disconnect the main power switch
Input power: Three-phase four-wire AC 380V
Output voltage and current:
1. Three-phase AC 0 – 10A output (<100V, adjustable) one group
2. Three-phase AC100V output (fixed value) one group
3. AC operating voltage output AC 0～400V, at 220V, current less than 10A
4. DC operating voltage output DC 0～260V
5. DC closing power supply output DC 0～300V (rated current 100A, short-time working current 300A) one group
6. Single-phase AC220V output (fixed value, socket form) two groups,
7. Three-phase AC380V output (fixed value, terminal) one group,
8. Dimensions: 560*520*850mm
