VLF with Tan Delta and PD

The VLF Tan Delta PD tester adopts digital frequency conversion technology, microcontroller control, and is fully automated for boosting, reducing voltage, measuring, and protecting. Due to its fully electronic design, it is small in size and light in weight. It adopts a large screen color touch screen, which is clear and intuitive, easy to operate, and displays output waveforms. The design index meets the national standard of General technology Conditions for Ultra Low Frequency and High Voltage Generators.

1.For ultra-low frequencies with a rated voltage less than or equal to 60kV, a single connection structure (one booster) is used; Ultra low frequencies greater than 60kV adopt a series structure (two boosters are connected in series), greatly reducing the overall weight and enhancing the load-bearing capacity. Moreover, both boosters can be used separately, achieving one machine with multiple functions.
2.Current and voltage data are directly sampled from the high-voltage side, so the data is accurate.
3.Intelligent comprehensive protection function: Without setting current and voltage protection values, the very low frequency vlf can calculate overvoltage and overcurrent protection values based on the size of the sample capacitance and the test voltage value. It can also provide protection against voltage and current mutations, so it can capture discharge situations. The protection action time is less than 20ms.
4.Using 150kV high-voltage line output, safe and reliable.
5.Due to the use of a closed-loop negative feedback control circuit, the output has no capacitance rise effect.
6.The new product has added DC, dielectric loss, and partial discharge testing functions, which can synchronously measure the dielectric loss, capacitance, insulation resistance, and partial discharge of the test object during the withstand voltage test process.