Basic measurements of power quality analyzer: voltage/current/frequency
Voltage/current/frequency can measure three-phase voltage, frequency of phase A voltage, three-phase current, as well as neutral line voltage and neutral line current.
The buttons used in the power quality analyzer are as follows:
Return: Go back to the previous menu.
List: Present the basic measurement results in a list format.
Details: Display the maximum, minimum and average values of three-phase voltage/three-phase current.
Trend: Displays the trend changes of the three-phase voltage RMS values, the frequency of the A-phase voltage, and the three-phase current RMS values within the current measurement period.
Transient: Displays the transient waveforms of three-phase voltage, three-phase current, and neutral current.
Pause: The measurement results have been paused.
Save: Save the current measurement results.
1) List display
Click the list button to display the results in a list format. The column values represent the effective values of the three-phase voltages, from top to bottom: the voltage of phase A, the voltage of phase B, the voltage of phase C, and the neutral line voltage. The second column shows the frequency of the voltage of phase A, which is the frequency of the voltage of phase A. The third column shows the effective values of the three-phase currents, from top to bottom: the current of phase A, the current of phase B, the current of phase C, and the current of the neutral line.
2) Detailed list display
Click on the “Details” button to display the maximum, average and minimum values of voltage, current and frequency during the measurement process.
3) Trend Display
Click the trend key to display the results in a trend chart format. In the list box at the top left corner, click the up/down arrow keys to switch between displaying the voltage trend chart, current trend chart, or frequency trend chart. In the voltage trend chart, from top to bottom, it is the voltage of phase A, phase B, and phase C. In the current trend chart, from top to bottom, it is the current of phase A, phase B, phase C, and the neutral line current. In the frequency trend chart, it shows the frequency of phase A. The trend chart curves gradually form from the left side, and the readings on the trend chart baseline correspond to the new values plotted by the curve. The lower part of the trend chart is the time axis.
4) Transient waveform
Click the transient key to view the basic measured transient waveform, as shown in Figure 1-4. In the list box at the top left corner, click the up/down arrow keys to switch the display of three-phase voltage, three-phase current, and the voltage and current waveforms of phase A, phase B, phase C, and the neutral line. The values above the oscilloscope represent the amplitude ratio of the selected waveform. When selecting three-phase voltage or three-phase current, from left to right, they are phases A, B, and C. When selecting single-phase voltage or current, the left side shows voltage and the right side shows current.
5) Pause
Click the pause button to stop the current measurement display.
6) Saving data
Click the “Save” button, and the following interface will pop up. You can choose to save the data or save the instrument screen. The basic measurement data are all saved in BHs000o1.PSC.
7) Save Screen
When inserting the USB drive and there is no current operation on the USB drive, you can click the icon at the top left corner of the screen to save the current screen to the USB drive. The file name of the screen is ddhhmmss.PSC. “dd” represents the current day (day number), “hh” represents the current hour, “mm” represents the current minute, and “ss” represents the current second.
Post time: Apr-14-2026