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KOLEKTOR ETRA

has been acting as manufacturer of power transformers for more than 85 years, specialized in production of transformers of 500 MVA rated power and 420 kV.

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Kolektor Etra

85 years

Kolektor ETRA

We are a company that has the capacity to produce energy and power generator transformers up to 500 MVA and voltages up to 420 kV. We focus mainly on technical areas, such as loss and reduce the noise level. Innovative, professional and responsible, were the words with which we characterize our valued customers in the past years.

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85 years

The satisfaction of creating excellence

Kolektor Etra objective is to supply products that satisfy customers with their technical parameters and high quality as well as optimal ratio between price and performance.

With experienced and qualified team we are able to carry out all routine, standard and special tests required by international standards.

Areas Of Expertise
  • Electromagnetics
  • Structural Mechanics
  • Thermodynamics
  • Acoustics
  • Anti-corrosion
Services
  • Transformer repair
  • Servicing and Maintenance
  • Decomposition and Recycling of Old Transformers
MANUFACTURING PROGRAM

Transformers

Power
transformers

Power transformers and autotransformers of up to 500 MVA rated power and 420 kV rated voltage with on-load and off-load…

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Special
transformers

To meet industrial demands,KOLEKTOR ETRA d.o.o. also manufactures special transformers: furnace transformers…

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Distribution
transformers

Oil-immersed distribution transformers of up to 2500 kVA rated power and up to 36 kV rated voltage, with a conservator or…

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News

Latest news and events

Kolektor Etra has signed the largest contract in the history of factory
Kolektor Etra has signed the largest contract in the history of factory
by

August 13rd 2019 was a historical day for Kolektor Etra. We have signed the largest contract in the history of our operations in amount of 20 mio EUR. It is a contract with Finish buyer Fingrid for the supply of 7 pieces of 400kV transformers, which will be manufactured and delivered by 2023. Fingrid generated 852.8€ mio EUR of revenue…

KOLEKTOR ETRA is A WINNER OF SLOVENIAN EXPORTER 2018
KOLEKTOR ETRA is A WINNER OF SLOVENIAN EXPORTER 2018
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We look forward sharing news with you that we received the prestigious award SLOVENIAN BEST EXPORT OF 2018 by the Conference of Slovenian Exporters, which was held at Brdo pri Kranju on September 14th. ” Apart from export achievements, Kolektor Etra convinced us that it is growing three times faster than the market. This does not come at the expense…

Transformator RT 400 MVA – 420 kV
Transformator RT 400 MVA – 420 kV
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We have produced and successfully tested so far the biggest and the heaviest power transformer of rated power 400 MVA and rated voltage 420 kV whose total mass is more than 400 ton. Transformer will operate in power plant in Germany, owned by SWM Infrastruktur GmbH.

Podpis pogodbe z ELES za dobavo dveh 400 kV transformatorjev
Podpis pogodbe z ELES za dobavo dveh 400 kV transformatorjev
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Kolektor ETRA je podpisala pogodbo z družbo ELES za dobavo dveh energetskih transformatorjev nazivne moči 300 MVA in napetostnega nivoja 400 kV. Vrednost posla presega 5 milijonov evrov. Transformatorja bosta dobavljena v prihodnjem letu, nameščena pa v RTP Maribor in RTP Divača.