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OFWF Transformers and Reactors


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    The versatility of oil makes it suitable for special applications and even compact solutions. It guarantees almost adiabatic systems with limited energy and heat losses in the room where the machine is installed.


    Thanks to the ongoing specialisation pursued by the Research&Developmet Department, GBE manufactures transformers and reactors of Oil Forced Water Forced (OFWF) type. This type of transformer or reactor does not feature any heat-dissipating element such as waves or radiators. Hence it features the advantage of a compact layout, reducing not only the overall dimensions, but also the weight. This system can be used for both distribution and power transformers. The tank of the electrical machine is in fact equipped with an oil/water heat exchanger that can be either with plate or tube bundle fitted outside of the same. The heat exchanger, connected to a hydraulic circuit within which circulates the cooling water, ensures that the oil contained inside the casing is kept at a normalized temperature for the correct operation of the machine. The heat exchanger is also equipped with a pump that enables forced circulation of the oil. These types of machines are used in places where it is not convenient and practical to dissipate heat in conventional ways within the room. This OFWF cooling solution proposed by GBE, is used very often in marine environments, inside buildings and facilities, where there are other machines installed and the heat output is very high.


    Transformers for measurement

    • 13 July 2018

    GBE also produces special transformers and reactors for measurement and testing laboratories. These products are executed according to customer specifications, guaranteeing a constantly high-performance product with a design geared towards specific operating conditions. There are numerous references of supply to testing rooms (ABB, Marelli, General Electric) and the experience we have acquired has allowed us […]


    Transformers for railway application

    • 10 July 2018

    We have already completed numerous, prestigious installations worldwide In all the countries where investments are being made in new transport infrastructures, GBE is the leading the way on the strength of its success as a qualified supplier for the underground systems in Warsaw (Poland), Sofia (Bulgaria), Helsinki (Finland) and Tallinn (Estonia). These are just a […]


    Objective 4.0

    • 10 July 2018

    For GBE, Objective 4.0: the fourth industrial revolution With the advent of the so-called fourth industrial revolution, thanks to the diffusion of new digital and non-digital technology, the industry is undergoing a profound transformation of the mechanisms that have produced value, innovation and well-being.  Once again, GBE is not satisfied to just sit back and […]

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