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Product Utilization
| Generate low-frequency AC voltage: The VLF tester can generate low-frequency AC voltage typically between 0.1 Hz and 0.01 Hz. This low-frequency voltage can be used to test the insulation performance of cables and equipment, locate cable faults, and test lightning protection grounding. |
| Detect cable insulation defects: The VLF tester can be used to detect cable insulation defects. By applying low-frequency voltage, cracks, gaps or other defects in the cable insulation can be detected. |
| Test high-voltage equipment: The VLF tester can be used to test the insulation performance of high-voltage equipment. By applying low-frequency voltage, parameters such as leakage current and insulation strength of high-voltage equipment can be detected. |
| Test lightning protection grounding: The VLF tester can be used to test the effectiveness of lightning protection grounding systems. By applying low-frequency voltage, the performance of grounding resistance and grounding devices can be detected. |
| Power system maintenance: The VLF tester can be used for maintenance and troubleshooting of power systems. By detecting the insulation performance of cables and equipment, faults can be prevented and the reliability of the system can be improved. |
| Locate cable faults: The VLF tester can be used to locate the position of cable faults. By measuring the propagation time of the signal and the characteristics of the reflected signal, the location and type of cable faults can be determined. |
Product Working Principle
The Vlf Cable Hv Hipot Test Set works by utilizing digital variable frequency technology and microcomputer control to generate very low frequency (VLF) AC voltage for testing the insulation properties of high voltage cables and electrical equipment. The instrument can perform automatic voltage boost, stepdown, measurement, and protection, with the added capability of manual intervention in the process. Its fully electronic design allows for precise and stable voltage output, while the large LCD screen displays the output waveform for clear and visual analysis. The test results can be generated and printed as test reports for further analysis. Overall, the Vlf Cable Hv Hipot Test Set is a reliable and efficient instrument for testing the insulation properties of high voltage equipment.
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