Transformer Loss Parameter Tester
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Function Description
①LCD display: used for Chinese character display, guiding operation, and intuitive reading.
②Fuse box: protects the instrument for normal operation.
③Grounding terminal: connects to the earth to ensure personal safety.
④Panel printer: prints measurement results.
⑤Terminals for measuring transformer capacity and active load.
⑥Terminals for measuring transformer no-load and load loss.
⑦External 220VAC power socket, used when charging or using external power supply.
Test Applications
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 has eleven screens, including the main menu and ten functional interfaces, which are described in detail below.
Main Menu Interface
The instrument enters the main menu upon power-on.
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. As shown in Figure 4, the selected item is 'Capacity Test'. Use the up, down, left, and right keys to change the cursor position. Press the OK key to enter the selected function display screen. The bottom line is the prompt line, showing the current date and time, the internal battery voltage amplitude, and the remaining battery percentage, so that you can timely know the battery status of the instrument and whether it needs charging to avoid failure to work normally on site due to lack of charging.
Note: The above information and technical parameters are compiled and released by Yangzhou Darui Electric Co., Ltd.
