Hebei Anmei Electrical Equipment Co., Ltd. is one of the most reliable manufacturers and suppliers of medium voltage epoxy transformer bushings in China, also supports customized service. If you're going to buy high quality medium voltage epoxy transformer bushings made in China, welcome to get quotation from our factory.
Product History
Early medium‑voltage transformers mostly used porcelain and oil‑immersed bushings, which suffered from fragility, oil leakage, complicated maintenance and severe safety hazards, failing to meet modern power grid upgrading requirements. With the maturity of epoxy resin insulating materials and vacuum casting technology, medium‑voltage epoxy transformer bushings emerged, initially applied only to special power distribution scenarios with strict safety requirements. Continuous technical iteration and process optimization have improved product performance, enabling its popularization across all medium‑voltage grades. In recent years, driven by intelligent power grid transformation and rapid development of new energy, its strengths in safety, environmental protection and maintenance‑free performance have stood out, making it a standard component for medium‑voltage transformers to fully replace traditional products.
Raw Materials
Core production materials are dedicated electrical‑grade raw materials. High‑purity electrical‑grade epoxy resin acts as the main insulating substrate to ensure superior insulation strength and molding stability.
Formulated with modified anhydride curing agent to ensure complete material curing and compact structure; high‑purity silica powder inorganic filler is added to enhance thermal conductivity, compression resistance and aging resistance; alkali‑free glass fiber‑reinforced skeleton is embedded to improve flexural and impact mechanical properties.
The conductive part adopts high‑purity oxygen‑free copper conductor, featuring high conductivity and low temperature rise. Meanwhile, special defoaming, coupling and anti‑aging additives are incorporated to further improve the product's sealing performance and long‑term operational stability.
Product Advantages
It offers outstanding insulation performance with solid casting free of air gaps and leakage, effectively preventing high‑voltage breakdown and flashover faults for safe and reliable operation. Adopting an oil‑free and eco‑friendly formula, it is flame‑retardant and explosion‑proof with zero risk of medium leakage and pollution, complying with standards for green power equipment. The lightweight design makes it lighter than traditional porcelain and oil‑immersed bushings for easier installation and transportation, while maintenance‑free operation greatly reduces later‑stage operation and maintenance costs. High mechanical strength and weather resistance enable it to withstand harsh working conditions including high/low temperatures, humidity, dust and vibration for a long service life. Its fully sealed structure blocks moisture and dust intrusion to protect internal transformer components.
Adopting a dry‑type fully sealed vacuum casting structure, the medium‑voltage epoxy transformer bushing is an oil‑free insulating product covering voltage grades from 12kV to 36kV, compatible with various oil‑immersed and dry‑type medium‑voltage transformers. With uniform electric field design, low partial discharge and low insulation loss, it supports both indoor and outdoor installation. Integrating three functions of conductive lead‑out, cabinet sealing and high‑voltage insulation, it boasts a compact structure and complete specifications. Customized sizes and connection modes are available to meet client demands, delivering excellent compatibility.
Strict quality control details forge reliable power products. Safe, stable and durable, our products win trust with strength. We are willing to provide high‑quality products and sincere services to establish long‑term cooperation with you.
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