Core Coil Assembly
The "active" part of the Transformer consists of the magnetic core with windings and accessories.
The laminations are stacked in steps, resulting in a circular core shape which gives the windings optimum radial support, especially during short-circuit conditions.
The core is clamped using structural steel clamps which provide high strength under both static (lifting and clamping) and dynamic (short-circuit) mechanical loads. The clamps are very lightweight for their strength and provide a smooth surface facing the winding ends, eliminating regions of high local electrical stress.
Optimum dielectric strength is achieved via processing in accordance with rigorous in-house quality procedures.