Very low frequency or VLF hipot testing was developed in the 80s as a more acceptable method of testing over traditional DC hipot tests. This testing method uses a pass fail results system without the greater potential for causing damage to equipment like the higher voltage DC high potential tests. VLF testing can be performed on cables, transformers, switch gear or rotating machines.
Learning more about the various forms of hipot testing is easy when you visit some of our past blog posts concerning this testing method:
Simple Diagnostic Tests for Insulators Using Hipot Testing – provides more information about testing insulation reliability on LV and MV electrical systems.
Use Less Power with VLF Hipot Testing Instead of AC – compares how VLF and AC use power for testing equipment.
Why Engineers Prefer VLF Hipoting – discusses the advantages of using VLF for detecting electric cable defects.
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