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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 acquired company Weltech in Poland
Kolektor Etra acquired company Weltech in Poland
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On the November 8th, Kolektor Etra completed acquisition process to acquire company Weltech from Myslowice. Company is located northwest of Krakow and has been operating for 25 years in transformer tank production business. The main reason for buying Weltech is because it is one of the best manufacturers for transformer tanks in Europe, as they are known for their punctual deliveries…

Kolektor Etra will deliver transformers also to USA
Kolektor Etra will deliver transformers also to USA
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Our first order for US consists of delivery of two power transformers of rated power of 110 MVA (138 kV) and one power transformer of rated power of 30 MVA ( 115 kV). Delivery is planned in 2022 to New York and State of Illinois. Two of Kolektor Etra transformers will be delivered to a wind farm and one to a…

North Macedonia: MEPSO signed 400/110 kV transformer deal with Slovenian Kolektor ETRA
North Macedonia: MEPSO signed 400/110 kV transformer deal with Slovenian Kolektor ETRA
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North Macedonia electricity transmission system operator MEPSO has signed a contract for the procurement of 400/110 kV transformer, which will be installed at Bitola 2 transformer station, connected to the country’s largest electricity generation facility – TPP Bitola, with Slovenian company Kolektor ETRA. The new transformer will replace the existing one, which has been in operation since 1980, and will…

Kolektor Etra signed first 400/115 kV/kV auto-transformer deal for Electricity Network of Serbia
Kolektor Etra signed first 400/115 kV/kV auto-transformer deal for Electricity Network of Serbia
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Electricity Network of Serbia (EMS) is a Serbian national transmission system operator company with the headquarters in Belgrade, Serbia. They have signed a contract with Kolektor Etra for the supply of an 400/115 kV/kV auto-transformer, which will be located in the suburbs of the third largest Serbian town. The mentioned transformer will be our first one of 400/115 kV/kV delivered…