Dry-type transformers adopt an oil-free insulation structure, with air or solid insulating materials (such as epoxy resin) as the cooling and insulating medium. It has prominent advantages such as safety and environmental protection (fire and explosion proof), maintenance-free (no oil treatment and detection required), reliable operation, and convenient installation (no oil pit required, low fire protection requirements). It is especially suitable for places with strict requirements on safety, environmental protection and space such as high-rise buildings, subways, airports, hospitals, data centers, industrial and mining enterprises. It is a high-efficiency, reliable and green core equipment for electric energy conversion in modern power distribution systems.

Advanced European technology has been introduced to optimize the design of epoxy resin cast dry-type transformers through patented technology and specialized software. The iron core of the product is made of high-quality oriented cold-rolled silicon steel sheet, manufactured by an automatic iron core production line with advanced step lap joint technology, which greatly improves the no-load performance of the iron core. The coil is cast with premium epoxy resin through precision vacuum casting equipment. The product features excellent resin permeability and no air bubbles, thus achieving low partial discharge. The high and low voltage coils are closely matched with high structural strength, ensuring strong short-circuit resistance and anti-vibration capacity. Under normal operating conditions, the product has a service life of 30 years, preventing cracking on the coil surface due to temperature variations.