Call us: +39 0444 774334
Follow Us:
  • Italian
  • English
  • German
  • Russian
  • Spanish
  • French
  • Portuguese (Portugal)
Home > Products > Hermetically Sealed Oil Filled Transformer

Search

Newsletter

Subscribe to our newsletter to receive updates.

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

Hermetically Sealed Oil Filled Transformer

The hermetically sealed oil transformers are normally manufactured with a sealed tank equipped with fins that allow the expansion at the temperature variations. The tightness of the tank is up to 0.5 Bar. This type of transformer is the most widely used in the world. In the hermetically sealed transformer, the oil does not come into contact with the air and its electrical properties are therefore not compromised, ensuring a long life span of the transformer. For powers exceeding 3150kVA, or in case of a transformer with radiators, the transformer can still be hermetically sealed by means of a nitrogen cushion.

Power 50 kVA – 5MVA
Voltage Class 1.1kV – 52kV
Material temperature classes A , F
Environmental temperature -60 a + 60
winding materials aluminium or copper
Oil Mineral, silicone, ester or vegetable type
Accessories Overpressure valve, thermometer, oil level, anti-vibration device, protective boxes
Strengths outdoor installation even with aggressive environmental conditions; compact size for high voltages, excellent resistance to overvoltages in resonance

News

Transformers and Reactors for marine applications

  • 24 June 2020

Offshore and onshore, an exclusive product for all types of marine installations Transformers and reactors for marine applications are distinguished in two different types of installations: offshore and onshore. For each of these installations, additional distinctions can be made depending on the application and use. GBE develops these exclusive products in cast resin, dry type […]

Continue

A look at the past to define the future

  • 28 May 2020

  GBE celebrates 20 years of business. We have achieved excellent results thus far, but we’re not done yet. There are numerous projects currently under way – not only in terms of the production process, with new investments especially in the power division – but also in regards to certifications in new markets where specific […]

Continue

Power division: continuous investment

  • 28 May 2020

  Tripled production capacity for power transformers     GBE produces air-insulated, cast resin and oil-filled, special and distribution transformers and reactors. In recent years we’ve increased the number of units produced for each type of transformer and reactor, as well as the average power, following an increase in orders for the power division, which is steadily […]

Continue
© 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