The KDHG-F1 transformer comprehensive characteristic tester is a multifunctional on-site testing instrument designed specifically for testing transformers, including volt ampere characteristics, transformation ratio, polarity, error curve, calculation inflection point, AC withstand voltage, and secondary side circuit inspection. Easy to operate and improve work efficiency, it is a high-tech product with high cost-effectiveness.

1. The device is designed for the following tests of CT and PT:
2. Measure and verify various types of CT and PT, including protective CT, metering CT, CT with excitation saturation voltage up to 45KV, transformer bushing CT, PT at various voltage levels, etc
3. Composite error (or peak instantaneous error), quadratic time constant, transient area coefficient, remanence coefficient, inflection point voltage and current, unsaturated inductance, ratio difference and angle difference, 10% (5%) error curve, turn ratio, turn ratio error, polarity, ratio difference, angle difference; Rapid transformation ratio; Guessing ratio; Excitation characteristics; 5% and 10% error curves; Manual demagnetization;
4. Support the detection of steady-state and instantaneous parameters of CT and PT (protection and measurement)
5. Support USB flash drive data transfer, which can be read through a standard PC and generate WORD reports
6. Measurement of CT and PT parameters such as coefficients, accuracy levels, saturated and unsaturated inductance.
7. It has a one click automatic testing function. Press the test button to automatically test the CT secondary direct resistance, variable ratio polarity, angle difference ratio, magnetization curve, and 10% (5%) error curve in order, and print the test report synchronously.
8. Meet the requirements of regulations such as GB1207 and GB1208
9. Without the need for external auxiliary equipment, most testing projects can be completed on a single machine
10. Comes with a miniature fast printer that can directly print test results on site
11. Adopting intelligent controller, easy to operate

CT (protective, metrological)
• Voltage current characteristic (excitation characteristic) curve • Voltage current characteristic (excitation characteristic) curve
• Automatically provide inflection point value • Automatically provide inflection point value
• Automatically provide error curves of 5% and 10% • Variable ratio measurement
• Ratio measurement • Polarity judgment
• Differential measurement • Differential measurement
• Phase (angle difference) measurement • Phase (angle)