30kV–33kV–35kV Epoxy Resin Dry-Type Distribution Transformer

The 30kV–33kV–35kV epoxy resin dry-type distribution transformer is a high-voltage dry-type distribution unit that uses vacuum-cast epoxy resin as its main insulation, dissipates heat through two cooling methods—natural air (AN) and forced air (AF)—and transforms high voltage through electromagnetic induction. Engineered specifically for medium- and high-voltage distribution applications, it features high insulation, high safety, and high stability.

1.The core is made of premium high-permeability silicon steel with fully mitred joints and a multi-step process, delivering low no-load losses.

2.The core surface is treated with a self-leveling nano epoxy-resin coating, which is environmentally friendly and low in noise.

3.The low-voltage winding is wound from copper foil; the inter-layer insulation bears low stress, and once cured and formed, it achieves moisture resistance.

4.The high-voltage winding is a multi-section, multi-layer cylindrical structure, statically mixed and vacuum-cast with degassing in vacuum casting equipment, achieving low partial discharge and excellent electrical performance.

5.The clamping spacers are vacuum-manufactured from high-purity epoxy resin and designed with ribbed contours to increase creepage distance, effectively enhancing electrical safety in harsh environments.

6.Premium fans, temperature controllers, and an enclosure are used to enable remote temperature measurement, fan start/stop, and power-off capabilities.

7.The product can adopt a dual-mode structural design, applying smart-transformer solutions and technologies such as big-data cloud diagnostics to meet the needs of diverse customer groups.

This product complies with GB/T 1094 Power Transformers, GB/T 10228-2023 Specification and Technical Requirements for Dry-Type Power Transformers, GB 20052-2024 Permissible Values of Energy Efficiency and Energy Efficiency Grades for Power Transformers, and IEC 60076 Power Transformers.