Vacuum Pressure Impregnated Insulation Rod

The Vacuum Pressure Impregnation (VPI) insulation products from Taporel Electrical use alkali-free glass cloth, polyester fiber cloth and other materials as reinforcing substrates. After pre-forming treatment, air and moisture inside the materials are removed in a vacuum environment, followed by high-pressure infusion of solvent-free electronic-grade epoxy resin-based adhesive. The products are then cured at high temperatures through a programmed stepwise curing process to form high-performance insulation components.

Taporel Electrical professionally develops and manufactures Vacuum Pressure Impregnation (VPI) insulation products, provides integrated solutions including customized design, precision machining and performance testing according to customer requirements. These products are fully suited for extra-high-voltage and high-voltage systems and can withstand harsh conditions such as heavy loads, humidity, and corrosion, ensuring long-term safe and stable operation of electrical equipment.

Vacuum Pressure Impregnation (VPI) insulation products offer excellent electrical insulation properties, featuring low partial discharge, high dielectric strength, high mechanical strength and strong impact resistance. They meet Class F/H temperature resistance requirements and exhibit outstanding aging resistance and weatherability.

Vacuum Pressure Impregnation(VPI) insulation products are widely applicable to high-voltage switches, transformers, reactors, GIS switchgear, instrument transformers, high-voltage bushings, motors and other electrical equipment. They are also deeply integrated into advanced fields such as new energy vehicles, rail transit, and aerospace, making them the preferred insulating structural material for various high-voltage electrical devices.