Traction Transformers – "Tractronic®"

The perfect transformer for every vehicle
Siemens Energy designs and manufactures Tractronic® traction transformers for rail operators and train manufacturers worldwide, that increase train efficiency and performance, handle maximum ratings in a minimum of space, serve local content demands for worldwide applications, and ensure maximum reliability and flexibility.
We cover every of your preference
With over a century of experience in transformer technology, Siemens Energy is one of the world’s leading suppliers for customized, state-of-the-art railway transformers. The secret to Siemens Energy stellar track record is a refined system of global logistics, internationally binding quality standards, highly trained skilled workers and specialization.Compact, light and efficient
Siemens Energy can design and customize the cooling unit to suit customer preferences, either integrated in the transformer in the full frame or as a separate component, entirely in accordance with the specific space requirements. Flexibility is also the order of the day when it comes to selecting cooling fluids. We have solutions for all capacity ranges that use oil, silicon, or an ester-based fluid (e.g. MIDEL 7131) that is very kind on the environment.
Leveraging data for maximum transformer performance
Siemens Energy transformers offers the opportunity to track the transformers in operation. Operators can not only monitor but optimize transformer performance. Monitoring and data analysis are the important factors for digitalization of traction transformer for rollingstock applications.
A modular multisensory system continuously monitors the “health” status of the transformer and modifies operation behavior according to the results of an onboard optimization algorithm. The Siemens Energy monitoring system leverages a new generation of sensors. These sensors transmit data to a local, remote or cloud-based control system. After data processing, the actors will – if necessary – receive commands for correcting the operation behavior.
Rely on Siemens Energy Transformers – anywhere, anytime
Siemens Energy traction transformers operates a worldwide manufacturing and service network to serve customers all over the world. Our manufacturing sites worldwide adhere to European quality and sustainability standards – regardless of the manufacturing location.
- trustful and responsible partner with solid installed base worldwide,
- state-of-the art transformers technology,
- tailored solutions for customer’s requirements,
- comprehensive service offering directly on-site
This ensures that customers can rely on Siemens Energy traction transformer, components and services, anywhere, anytime.
Developed, tested and certified
Siemens Energy traction transformers are setting standards of quality and versatility around the world. Close cooperations with international standards committees guarantee the compliance with the specific requirements and standards.
Our railway components comply with all the relevant standards, for example: DIN, EN, IEC, IEEE, ISO, EAC / GOST and ANSI, as well as the current fire protection standard EN 45545. With our certified components, we actively support the worldwide vehicle approval process; hence our traction transformers comply with all relevant standards, for example:
- ISO 9001
- ISO 14001
- ISO 45001
- ISO 22163 (IRIS)
- Welding qualification EN 15085-2
Tests for maximum reliability and customer satisfaction
Siemens Energy uses the most advanced and comprehensive routine tests, type evaluations and special tests for maximized product reliability and customer satisfaction. Siemens Energy traction transformers are tested essentially in the same way as power transformers to ensure maximum safety and quality. Upon request, tests may be performed at an accredited third-party laboratory.