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Home > Products > Reactors



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GBE SpA is specialised in producing class F or H VPI, Cast Resin and Oil reactors, for indoor and outdoor applications up to 5000 A/52 kV. For outdoor applications, GBE SpA can supply Cast Resin reactors even without the protection box, thanks to the use of resin and special, UV-resistant coatings.


The current limiting reactors are used to limit the line current. They are normally used to ensure that the current does not exceed the values ​​allowed by the protections in the event of a failure. They are connected in series with the line. They are single-phase coreless coils three-phase connected one above the other, or provided individually and locally three-phase connected


Typically made in oil, they have a three-phase core with zig-zag winding. This type of reactor is used to create a false neutral directly connected to ground or through a resistor. The neutral formers are shunt connected to the line.


These are single-phase or three-phase reactors used to reduce the harmonic content in the grid or inside plants with high voltage distortions. They are connected in series or in parallel to the capacitors on both the LV side and on the MV side.


The shunt reactors compensate for the capacity of the long transmission lines, avoiding voltage rises in voltage at the end of the same line and are shunt connected to the line.


The smoothing machines are connected in series to the DC line, where there is a current ripple that must be reduced. The smoothing reactors are typically single phase.


These are reactors connected in series to capacitors, they allow the resonance frequency to be moved to a value that are not dangerous to these capacitors.


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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