The 0.1Hz very low frequency cable tester has excellent equivalence to the conventional power frequency withstand voltage test, and can replace the traditional methods. Its size and weight are significantly reduced.
When selecting a very low frequency cable tester, it is essential to consider the output frequency, voltage, load capacity, protection functions, and applicable scenarios. The specific parameters need to be determined based on the type of cable, its length, and the test standards.
We can consider below factors when deciding to find a suitable model of VLF cable tester
1. Cable type: Suitable for PE, XLPE, and other plastic power cables, and can also be used for equipment such as generators, motors, and power capacitors.
2. Cable length: Select the appropriate frequency and voltage level based on the earth capacitance of the cable. For example:
At 0.1Hz, the maximum load is 1.1μF, suitable for medium and short cables;
At 0.02Hz, the maximum load is 5.5μF, suitable for long-distance cables 36.
3. Portability: Small in size and light in weight, suitable for outdoor operations.