PET composite film

The PET composite film used in dry-type transformers serves primarily to provide electrical insulation and enhance heat dissipation, thereby ensuring the transformer's safe and stable operation.

PMP composite foil

PMP composite foil, formally known as polyester‑film capacitor paper soft composite foil, is manufactured by laminating and calendering two layers of capacitor paper with a central layer of polyester film, bonded together with an insulating adhesive. It exhibits excellent dielectric properties, effectively isolating electrical current to ensure electrical safety, while also possessing superior mechanical performance.

Dispensing AMA

AMA dispensing paper is a novel electrical insulating material produced by uniformly coating a special modified epoxy resin in a diamond‑grid pattern onto AMA (a composite material consisting of polyester film laminated with two layers of cable paper). It is primarily used in oil‑immersed transformers as a replacement for conventional dispensing paper.