The KDHG-500 Voltage Method Transformer Characteristics Comprehensive Tester is a multifunctional on-site testing instrument designed specifically for testing transformers such as PT, CT (protection and measurement), volt ampere characteristics (excitation characteristics) curves, automatic inflection point values, automatic error curves of 5% and 10%, transformation ratio measurement, ratio difference measurement, phase position (angle difference) measurement, polarity judgment, primary current test, AC withstand voltage test, secondary load test, secondary winding test, and iron core demagnetization. During the experiment, only the test voltage/current values need to be set without setting parameters such as step size or segmentation points. The equipment can automatically boost/boost current and quickly display the voltage current characteristic curve, transformation ratio, polarity, and other experimental results of the transformer. It supports data saving and on-site printing, which not only saves the tedious labor of manual voltage regulation, manual recording, and curve drawing, but also uploads the test data to the computer for editing, saving, or printing through the USB interface. Easy to operate and improve work efficiency, it is a high-tech product with high cost-effectiveness.

1. Support detection of CT and PT
2. Meet the requirements of regulations such as GB1207 and GB1208
3. Without the need for external auxiliary equipment, most testing projects can be completed on a single machine
4. Equipped with a miniature fast printer, it can directly print test results on site
5. Adopting an intelligent controller, the operation is simple
6. Large screen LCD, graphical display interface
7. Automatically provide CT/PT (excitation) inflection point values according to regulations
8. Automatically provide 5% and 10% error curves
9. Can save 3000 sets of test data without losing it after power failure
10. Supports USB flash drive data transfer, which can be read through a standard PC and generate WORD reports
11. Compact and lightweight ≤ 22Kg, very conducive to on-site testing

1. Working power supply: AC220V ± 10%, 50Hz
2. Device output: 0-2500Vrms, 5Arms (20A peak)
3. High current output: 0-1000A
4. Secondary winding resistance measurement range: 0-50 Ω
5. Measurement accuracy of secondary winding resistance: ≤ 0.5%
6. Secondary actual load measurement range: 0-300VA