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.
The economic and compact solution for adjusting the grid voltage, optimising the performance of the transformer and reducing losses In most countries in Europe (and around the world), the voltage of the power lines for the distribution of energy varies by more than +/- 10%, no longer guaranteeing the maximum limit as required by EN50160. […]
A customised supply for one of the most innovative oil rigs in Europe GBE, a company capable of developing customized solutions covering all kinds of products, satisfying any installation need and managing also the machining processes internally, has played once again a strategic role in one of its recent supplies. For the Tempa Rossa plant, […]
The aim is to reduce losses and gain in efficiency. GBE are ready, thanks to their high ECODESIGN transformers production. The global commitment for energy efficiency and emissions reduction keeps moving on. The newest European Union Legislation 548/2014 sets the new standards about ecodesign, imposing a drastic reduction on losses of new transformers launched on […]