VLF Series
Original Power Supply Design with Simple Analog Controls
The VLF Series uses an oil-immersed, conventional power supply design protected under US Patent #6169406, providing economical and easy to use options for cable testing. HVI’s VLF Series hipots demonstrate high reliability and can be serviced worldwide as needed.
VLF e Series
Fully Programmable Digital Design with Wireless Remote Control
The VLF E Series uses a state-of-the-art, switching power supply design with wireless computer controls. Equipped with HVI’s E-Link software, the E Series stands among the most advanced cable testing systems available. Our customers praise its flexible data capture and reporting capabilities, full remote operation via XBee wireless technology, and seamless tan delta testing with HVI’s TD units.
Cable Diagnostic Tools
For non-destructive diagnostic testing to determine the quality of a cable’s insulation with minimal risk of failure, HVI recommends tan delta and partial discharge testing for valuable diagnostic data about cable insulation integrity. Both use a VLF source to perform elevated voltage, off-line testing. Tan delta testing measures insulation health, while PD identifies specific problem areas and assesses their severity.
