High Voltage Inc

High Voltage Inc

High Voltage Inc (HVI) is a US-based manufacturer specializing in high voltage test equipment for cable and electrical insulation testing. The company produces a comprehensive range of hipot testers, including Very Low Frequency (VLF) AC systems and DC hipot megohmmeters, designed to verify the dielectric integrity of medium and high voltage cables, switchgear, transformers, and other power apparatus.

HVI's VLF technology is widely applied for testing cross-linked polyethylene (XLPE) and ethylene propylene rubber (EPR) insulated cables, where traditional DC testing methods can cause damage to modern cable insulation. Their hipot testers support both diagnostic testing and maintenance withstand testing across a broad range of voltage ratings up to 100 kV AC and beyond.

Key Product Lines

• VLF (Very Low Frequency) hipot testers for medium and high voltage cable acceptance and maintenance testing
• AC hipot testers for dielectric withstand testing of electrical apparatus up to 100 kV
• DC hipot megohmmeters for insulation resistance measurement and leakage current testing of power equipment

Industries Served

High Voltage Inc equipment is used by electric utilities, cable installers, electrical contractors, and power plant maintenance teams for acceptance testing of new cable installations and periodic maintenance testing of existing power infrastructure. Applications include medium voltage cable testing, transformer insulation testing, motor testing, and switchgear commissioning.