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Shaping the future of transformers

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Siemens offers transformers for all outputs and voltages, every type of cooling and every mode of operation. Our product are designed with environmental sustainability and efficiency in mind and comply with EU norms and guidelines.


From compact distribution to large power transformers with ratings over 1000 MVA – choose from our broad portfolio to get the right product for your requirements!

You need specific information on Siemens transformers?
Contact us
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Power Transformers

Power Transformers

  • Rated power: from ≤ 100 MVA to > 400 MVA
  • Application areas: power generation, power transmission, industry, infrastructure
  • Features: available in special low noise version, designed to be highly efficient with “green” transformer options
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Reactors

Reactors

  • Rated power: from ≤ 10 MVA to > 400 MVA
  • Application area: power transmission
  • Features: available in special low noise version, designed to be highly efficient with “green” transformer options
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Phase Shifting Transformers

Phase Shifting Transformers

  • Rated power: from ≤ 10 MVA to > 400 MVA
  • Application area: power transmission, industry
  • Features: available in special low noise version, designed to be highly efficient with “green” transformer options
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HVDC Transformers

HVDC Transformers

  • Rated power: from ≤ 10 MVA to > 400 MVA
  • Application area: power transmission
  • Features: available in special low noise version, designed to be highly efficient with “green” transformer options
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Distribution Transformers

Distribution Transformers

  • Rated power: from 5 kVA bis ≤ 30 MVA
  • Application areas: distribution MV, industry, infrastructure
  • Features: designed to be highly efficient with “green” transformer options
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Traction Transformers

Traction Transformers

  • Rated power: ≤ 10 MVA
  • Application area: mobility
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Success story, April 19, 2017

Generator step-up transformers order for French nuclear power plants

Siemens Transformers, the most innovative supplier of power transformers, received an order for three single-phase step-up transformers (GSU) 405/20-kV 570-MVA from EDF.

A key role in electricity supply

Current highlights

Distribution transformers in new clothes

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In March 2017 Siemens was honored with the IF award for its innovative transformer design. Along with the eye-catching layout of its transformers, Siemens now announces the renaming of two product lines: FITformer and GEAFOL Neo. FITformer is the name of the transformer family now congregating all liquid immersed distribution transformers while GEAFOL Neo is the modern version of the current GEAFOL Basic. The new brand names reflect Siemens’ innovation leadership and top-end quality. Siemens FITformer and GEAFOL stand for eco-friendliness, high efficiency and maximized availability. While the names and visual appearance of our products will change, our expertise and quality remains the same. 

Resilience: Pretact® – React in advance

Keeping grids resilient - at any time with Siemens Transformers

Reliability of energy grids is a matter that effects everybody involved in the business. Siemens Transformers offers a whole portfolio to offer grid resilience wherever needed. Our concept, named Pretact®, for resilient grids comprises a three-pillar-plan to enable our customers to prevent failures, protect their equipment and react in cases of emergency. Learn more on this topic in our infographics, use cases and collaterals. Our new concept addresses emergencies, retrofits and new installations along the entire energy value chain to increase network stability by modular feature/ solution architecture for power and distribution transformers.

Resilience transformers reached their destination in Kansas

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Siemens has delivered three of its new mobile resilience transformers to Westar Energy, US. The highly innovative technology, specifically designed for quick response, will allow Westar to replace a transformer within a few days rather than the months it can take to transport and install an available unit. Siemens one-of-its-kind resilience concept is considering a modular architecture to provide cost efficient solutions for planned and forced outages.

 

Visual Design: Shaping the future of transformers!

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Have you ever asked yourself why a transformer looks the way it does? The most innovative engineering, materials and technologies are hidden inside. We have decided that in future our leading electrical and mechanical design should be visible from the outside.

 

Honored with the coveted iF Design Award 2017: the Transformer Family Design and the Design of the Mobile Resilience Unit as part of the Pretact® Concept.

Ecodesign

Check your transformer’s compliance with EU requirements

As of July 2015, distribution and power transformers put into service within the European Economic Area (EEA) must comply with the new requirements of the Ecodesign Directive from the European Commission. The directive aims to improve energy efficiency, environmental compatibility and thus to reduce CO2 emissions. Siemens transformers can be designed to fulfill the new EU requirements.

Does your transformer’s Peak Efficiency Index satisfy the new EU requirements?  

The entered values equal a Peak Efficiency Index of

%
Target value:
Your transformer satisfies the new EU requirements and is ready for action!

If you still have any doubts or questions, we are pleased to help you.

Your transformer does not satisfy the new EU requirements and is not allowed to go in operation within the EEA. The loss level has to be decreased.

We are pleased to help you with any questions or further information.

Calculate your transformer’s efficiency

With our free Siemens Transformer App, you can calculate and compare noise and efficiency values of different transformers on the fly:

Always get the most out of your products

Do you have any questions regarding our transformer services?
Contact our support

Fields of operation

Find out why Siemens makes a difference

In more than 100 countries and for more than 100 years, transformers made by Siemens have been synonymous with top quality. The extreme high reliability (mean time between failures) is only one example of this quality. To ensure things stay this way, we are constantly working with high level experts on research and new developments. Furthermore, we are always close to our customers – thanks to our global manufacturing and service network. See for yourself, why our transformers make a difference!

 

Explore our worldwide transformer references

 

Green Transformers with ester insulation

Handling three different voltages at once

Reliable power transmission from New Jersey to New York City

Make use of our services

For your convenience, we have assembled relevant downloads as well as details of support contacts below.

Energy Customer Support

Siemens AG
Freyeslebenstrasse 1
91058 Erlangen
Germany

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Contact us and get your tailored solution

Do you need a tailored transformer solution for your energy challenge? Tell us your requirements and we will find the right product for you.

We offer customized transformers for your needs.
Contact us

Stay up to date with our transformers


Our transformers, upcoming industry events and tradeshows – get the latest news here!

News  

Delivery of the first Pretact® bullet-resistant transformer

As a foremost innovative supplier of power transformer solutions, Siemens has once again proved its capabilities to be unparalleled by sealing a historic deal for an industry premier: the first bullet-resistant power transformer unit.