The core is made of high-quality, high magnetic-permeability, cold-rolled grain-oriented silicon steel sheets. A three-phase symmetrical structure is adopted to reduce core loss and noise.

The primary winding (high-voltage side) is typically connected in delta (D) or star (Y) configuration to match grid voltage requirements.

The secondary windings (low-voltage side) consist of multiple independent three-phase windings. Precise phase displacement is achieved through edge-to-edge triangular connections.

The insulation system adopts Class F or Class H insulation materials. The windings are integrally formed through vacuum pressure impregnation or casting processes, which provides excellent electrical and mechanical strength and enables them to withstand steep-front surge caused by MVD systems.

The cooling system design is achieved through various structural configurations, ensuring stable operation under rated load conditions.

Widely used in industrial drives, mining, marine electric propulsion, energy and metallurgy, and various testing platforms, suitable for high altitude, high humidity, and other harsh environments..