The YNXZ-D cable AC withstand voltage test device is suitable for the AC withstand voltage test of 10kV, 35kV and other cables. The frequency conversion series resonance withstand voltage test uses the inductance of the reactor and the capacitance of the tested product to achieve capacitive resonance, and achieves high Voltage, high current. The cable AC withstand voltage test device is mainly composed of a variable frequency power supply (host), an excitation transformer, a resonance reactor, and a capacitor divider.

The frequency adjustment range of YNXZ-D cable AC withstand voltage test device is 30～300Hz, which is in line with the corporate standard "Preventive Test Procedures for Power Equipment" issued by China Southern Power Grid Corporation. Not only can it meet the withstand voltage requirements of high-voltage XLPE cables, but it also has light weight ( The weight of a single part does not exceed 30kg), and the advantages of good mobility are suitable for on-site testing.

The resonant reactor and excitation transformer in the YNXZ-D cable AC withstand voltage test device are cast with dry epoxy, which is suitable for the requirements of various cables.

1. A large number of cables with voltage levels of 35kV and below are used, and the test workload is large. Therefore, this type of withstand voltage test device is small in size and light in weight, and a portable cable withstand voltage test system was born;

2. This system requires that the weight of the parts that a single person can move on-site does not exceed 30kg, and the weight of the parts that two people can move on-site does not exceed 60kg, which is suitable for on-site transportation;

3. The power supply adopts 220V single-phase power supply or 380V single-phase power supply, which is convenient for on-site power supply;

4. The reactor part is made of dry epoxy casting, which is beautiful and reliable, suitable for the requirements of various cables;

5. Oil-immersed reactors are used for the withstand voltage test of cables with voltage levels of 110kV and above. When the weight of the unit exceeds 100kg, our company's small electric crane can be selected.

1. Rated output voltage: 0～220 kV (effective value) and below

2. Output frequency: 30～300Hz

3. Resonant voltage waveform: sine wave, waveform distortion rate ≤1%

4. Full load working time: continuous working time 60min

5. System quality factor: ≥20 under load

6. Frequency adjustment fineness: 0.1Hz, instability ≤0.01%

7. Working power supply: 220V or 380V single-phase mains