Measurement of transformer capacity, no-load current, no-load loss, short-circuit voltage, and short-circuit (load) loss
Working power supply Input voltage 185Vac～250Vac
Allowable input voltage 85Vac～264Vac
Frequency 50/60Hz
Input power 40VA
AC voltage Range 10～650V
Resolution 0.001V
Accuracy 0.2%±0.001V
AC current Range 0.5～60A
Resolution 0.001A
Accuracy 0.2%±0.001A
Resolution 0.001Hz
Accuracy 0.2%±0.001Hz
Power Range 0～39kW
Resolution 0.001kW
Accuracy ＜±0.5%(CosΦ＞0.1)，±1.0%(0.02＜CosΦ＜0.1)
LCD Panel
The LCD display interface mainly consists of eleven screens, including the main menu and ten functional interfaces, which are described in detail below.
1. Main Menu Interface
Upon power-on, the instrument enters the main menu, as shown in Figure 3:
The main menu has ten options: Capacity Test, Parameter Settings, Active Load, Single-Phase No-Load, Three-Phase No-Load, Single-Phase Short-Circuit, Three-Phase Short-Circuit, Result Query, Electrical Parameters, and Harmonic Analysis. When the cursor points to a function option, that option is displayed in reverse color. In Figure 4, the selected item is 'Capacity Test'. Use the up, down, left, and right keys to change the cursor position. Press the Enter key to enter the selected function display. The bottom line is the prompt line, showing the current date and time, the internal battery voltage amplitude, and the remaining battery percentage, allowing timely monitoring of the battery status to know whether charging is needed to avoid being unable to work on site due to insufficient charge.
