Phase Protection and Power Transformer


Transformers of type HNP get used for Phase Transformers of Stator Ground Protection, Power Transformers or Voltage Transformers. The high-voltage-carrying primary winding is realised as a uniformly isolated winding, and cast according to a special vacuum pressure method.

The potential of the high-voltage coil is controlled towards all sides, such as outer and inner lateral area and frontal area. By means of this special control, the electric load is carried by cast resin only, thus ensuring the complete absence of partial discharge of the phase transformer.

The secondary winding as well as the core system are placed into the inner cylindrical opening, and equipped with a mounting frame. The secondary winding consists of two galvanically separated windings.