Home > Products > Vacuum Pressure Impregnated (VPI) Transformers



Subscribe to our newsletter to receive updates.

  • This field is for validation purposes and should be left unchanged.

Vacuum Pressure Impregnated (VPI) Transformers

VPI transformers, a new construction concept, are suitable for installations that require particular attention to the environment, with minimum flammable material.

The windings up to 1.1kV class are made in foil or strip in a continuous layer; for higher voltages, the winding is made of disks connected in series or parallel according to the voltage or power of the winding.

The insulation can be used in class F or H and the impregnation is made with class H polyester resin

All production with air insulation has a small amount of flammable material, less of the resin solution and without any term of comparison with the oil solutions.

The transformer impregnated in air is not only suitable for distribution, but also for any type of special applications (such as the resin transformer). There are no particular limitations for the insulation levels, although generally it is not used for classes higher than 36 KV.

This type of transformers can be provided with a protective box, according to the desired IP. The boxes are painted with epoxy paint according to the RAL requested (RAL standard 7032) with pickled or galvanised sheet for outdoor installations.

Special applications for the outdoors include the creation of an aluminium box complete with MV ceramic bushing and LV resin insulators.

Power 5 kVA – 30MVA
Voltage Class 1.1kV – 36kV
Material temperature classes F (155°C), H (180°C)
Environmental temperature -60 a + 60
winding materials aluminium or copper
Accessories Temperature control sensors, temperature control units, fans, boxes, anti-vibration devices
Strengths low energy content in the event of fire, reduced weight, excellent resistance to heat waves


Eco 3+ transformers with amorphous core

  • 17 March 2021

Eco 3+ transformers with amorphous core As of 1 July 2021, all transformer manufacturers will have to strictly comply with the production of transformers classified with the term Tier 2, with the exception of specific applications, as laid down in Regulation no. 548/2014 with Phase 2. However, for over 10 years, GBE has been offering […]


ISO 45001 Certification

  • 17 February 2021

ISO 45001 Certification Workplace health and safety: the personnel are the primary wealth for GBE GBE has integrated its IMS system with ISO 45001 certification to ensure safe and healthy workplaces and prevent work-related injuries and illnesses. For many years, GBE has been in possession of ISO 9001 certification related to product quality and ISO […]


Quay transformers: Shore-to-Ship

  • 27 January 2021

  Quay transformers: Shore-to-Ship Respect for the port environment, therefore, reduction of consumption, pollution and noise The regulations in port areas increasingly call for a reduction in the air and noise pollution produced by the ships moored in ports. This requirement is met by using ground power instead of on-board generation during mooring. The shore-to-ship […]

© 2014 GBE S.p.A Stabilimento e sede legale: Via Teonghio, 44 - 36040 Orgiano - Vicenza - Italy Capitale Sociale: Euro 1.000.000,00 i.v. P. I.V.A./CF IT02829300249 - REA 278537 - Registro Imprese Vicenza 26501/2000 Privacy policy