● The number of cables used at 500kV and below voltage levels is large, and the testing workload is heavy. Therefore, this type of withstand voltage test device is small in size, light in weight, and the portable cable withstand voltage test system was thus born;

● This system requires that the weight of components that can be moved by a single person on site does not exceed 30kg, suitable for on-site handling;

● The power supply uses 220V single-phase or 380V single-phase, convenient for on-site power access;

● The reactor part adopts dry-type epoxy casting, which is beautiful and reliable, suitable for various types of cables.

Technical Parameters


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1. Rated output voltage: 0～660kV (RMS) and below

2. Output frequency: 20～300Hz

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

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

5. System quality factor: ≥20 at maximum load

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

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

8. Product configuration and applicable objects

Scope of application description: Unless otherwise specified, the 10kV cable length given in the table above is the length at 2.0 times withstand voltage, 32Hz~300Hz. If it is 2.5 times withstand voltage, 39Hz~300Hz, the cable length should be reduced by 33% accordingly.

　　Product configuration description: 1. Users can optionally configure compensation capacitors

　　2. Special test objects can be customized