


JST Power Equipment is more than a manufacturer – we are a solutions innovator at the cutting edge of transformer technology. We continually work to create products with higher efficiencies and lower costs. Each year, we make substantial investments in research and development of new products and manufacturing techniques. We regularly innovate on behalf of our customers, collaborating with them to find solutions to their specific challenges. Explore JST’s systems and solutions.
Environmentally friendly, safe alternative to liquid-filled transformers
VPI transformers are an excellent alternative in applications that call for an environmentally friendly, economical solution. They reduce flammability concerns, require less maintenance, and are less prone to contaminating the surrounding environment than liquid-filled transformers, avoiding the need for catch basins during construction. Our VPI transformers are designed with NOMEX® insulation. Its compact structure makes the electric field between insulation and cooling medium more uniform—reducing dielectric loss. NOMEX® is non-toxic and is fire and moisture resistant for increased safety.