Dry-type Transformers

Our company has independently developed the SC(B) series of thin-insulation dry-type transformers, which incorporates advanced foreign technology. Because the coils are encapsulated in epoxy resin, they are flame-retardant, fireproof, explosion-proof, maintenance-free, pollution-free, and compact, allowing direct installation at the load center. Simultaneously, the scientifically designed and rationally crafted casting process results in lower partial discharge, lower noise, and stronger heat dissipation. Under forced air cooling, they can operate continuously at 140% of rated load. Equipped with an intelligent temperature controller, it features fault alarm, over-temperature alarm, over-temperature trip, and blackout functions. It connects to a computer via an RS485 serial interface for centralized monitoring and control.

Due to these characteristics, our dry-type transformers are widely used in power transmission and transformation systems, airports, high-rise buildings, commercial centers, residential communities, and other important locations, as well as in harsh environments such as subways, power plants, ships, and offshore drilling platforms.

It is widely used in important places such as power transmission and transformation systems, airports, high-rise buildings, commercial centers, and residential communities, as well as in harsh environments such as subways, smelting power plants, ships, and offshore drilling platforms.

1. The core is made of imported high-quality cold-rolled silicon steel sheets, with a fully skewed joint structure. The core columns are bound with F-grade non-woven adhesive tape, and the core surface is encapsulated with epoxy resin, reducing no-load loss, no-load current, and core noise. Clamps and fasteners undergo special surface treatment, further improving the product's appearance quality.

2. The high-voltage winding uses vacuum casting with filled toroidal resin, greatly reducing partial discharge and improving the coil's electrical strength. The inner and outer walls of the winding are filled with fiberglass mesh, enhancing the coil's mechanical strength and improving its resistance to sudden short circuits, ensuring the coil will never crack.

3. The low-voltage winding adopts a foil structure, solving the axial helix angle problem encountered with wire winding, resulting in a more balanced ampere-turn ratio. Simultaneously, the coil uses an axial cooling airflow, enhancing heat dissipation. The winding layers are pre-impregnated with TD anodized epoxy resin and cured as a whole.