Oil Power Transformers
GBE supplies oil power transformers up to 50 MVA with voltage of 145kV (BIL650), with Off Circuit or On Load Tap Changer. TheOn Load Tap Changer can be either external or internal to the transformer tank. The oil power transformer is made according to constructive and design criteria as to ensures the highest operational reliability and a great performance in the electrodynamic stress, as well as excellent isolation so to avoid problems related to possible network overvoltages. The magnetic core is made with high permeability 45 degrees cut steel sheets in the European or American step lap type. The pack tighteners of the magnetic sheets are sized appropriately to ensure the mechanical sealing, noise reduction, and any problem relating to the handling or stresses of the windings. The MV and HV windings are made of a disc or with transposed cable conductors; they are made with horizontal or vertical winding machines by experienced staff in a controlled environment. The positioning of the coils and the gap between them and between the layers is performed according to the precise indications of the electrical design, as well as the type of conductor and the its processing. The drying and pressing process of the windings prior to assembly is fundamental and is carried out in a furnace with dry air circulation, monitored and recorded temperatures.
The power transformer can have two or more windings and can be fitted with compensation winding.
An important supply for GBE to a state-of-the-art plant in the UK Its ability to guarantee high-quality standards year after year allows GBE to continue to build new partnerships with leading companies in energy distribution and production. In 2020, GBE partnered with one of the UK’s leading suppliers of renewable energy, specialising in building waste-to-energy […]
IP56 protection enclosures for applications in particularly challenging environments Cast-resin and dry-type transformers are not suitable for outdoor installation unless they are placed inside a protective enclosure which can be made of pickled or galvanised sheet metal (even aluminium), and according to the degree of protection required. In particularly humid environments or those with highly […]
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