VLF Test Sets from 30kV 80kV with Sine Wave Output VLF means Very Low Frequency is used in AC hipot test for power cables, transformers, switchgear and other electrical apparatus. A VLF hipot is just an AC output tester but with an output

VLF means Very Low Frequency is used in AC hipot test for power cables, transformers, switchgear and other electrical apparatus. A VLF hipot is just an AC output tester but with an output frequency of 0.1 Hz or lower rather than 50/60Hz. A