Transformers for battery storage and charging technology

TRAMAG transformers support you on the way to E-Mobility

Power for your batteries

Charging technology and battery management have their own requirements for transformers, such as the conversion from DC to AC voltage or the high power consumption. We offer suitably designed winding goods for the desired voltage supply while ensuring high power quality.

Nearly 100 years of experience

DIN standard EN IEC 61558 compliant

Specialized production

Safe charging with winding materials from TRAMAG

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Charging technology that keeps its promises

High power quality and voltage supply

At the cutting edge of battery storage technology

Battery storage and charging technology is moving the world independent of the power grid. This demands compliance with complex and special requirements in the electrical system. Thanks to our storage chokes and isolation transformers, we are one of the leaders in the field of charging system infrastructure.

Storage chokes for charging stations

We are your contact for battery charging systems, battery charging stations, energy storage systems and energy storage systems. Our special transformers and chokes for energy storage and charging systems convince with high performance and decades of proven quality.

Standards in battery storage technology

Our products are certified according to:

  • Construction and testing standard DIN EN IEC 61558
  • UL/CSA
  • Electrical protection classes I and II
  • Insulation classes B, F and H
  • Protection classes according to IP
  • DIN ISO 9001:2015

100 years of experience for a volatile market

TRAMAG technology, proven for decades, is also used when it comes to winding goods for battery storage technology. All our solutions are designed to meet the complex requirements of the rapidly changing market for energy storage and charging systems.

Development expertise & production quality

Our expertise for your safety

Production safety

TRAMAG attaches great importance to the electrical safety of its products, which is guaranteed by the strictest compliance with all relevant standards.

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Our experience

For almost 100 years TRAMAG has been developing and manufacturing a wide range of transformers and chokes for various applications all over the world.

Our references

Quality standards

A certified QM system, special testing facilities, as well as the distinctive quality commitment of all TRAMAG employees ensure our high quality standards.

More about quality


The experience in development and production enables TRAMAG to respond flexibly and individually to special customer requirements, from one-off to series production.

More about flexibility


Always up to date in transformer technology

23. March 2023

TRAMAG Branch Chokes – The perfect fit for Multilevel Converter Systems

Industrial drives systems require powerful converters with maximum flexibility and high availability. In addition, they must be suitable for controlling almost any type of motor and the voltage-signal must be mains-friendly as well as motor-friendly on the output side.

15. March 2023

TRAMAG Special Transformers with the right power for Copper Wire Production

TRAMAG Special Transformers with the right power for Copper Wire Production Highlight of the week Machine and plant construction is the primary domain for the use of our TRAMAG transformers. […]

8. March 2023

TRAMAG Low Harmonic Filter (LHF) Chokes for trouble-free operation of Island-Power-Supplies

TRAMAG Low Harmonic Filter (LHF) Chokes for trouble-free operation of Island-Power-Supplies Highlight of the week Separated from the public interconnected power grids operated by large energy supply companies, technologically complex […]

28. February 2023

TRAMAG transformers with multiple secondary system for medical devices in use

In hardly any other industry are the quality requirements for safe voltage supply, electrical safety and reliable functionality greater than in medical technology.

Transformatoren für Medizintechnik
23. February 2023

Sinusoidal Filters for drive systems with special requirements

TRAMAG chokes and filters are used in drives systems whose core component is a frequency converter that controls one or more motors of a machine or system. Between frequency converters and motors, caused by long cable lengths, undesirable voltage surges can occur at the motor terminals and damaging, parasitic losses can occur in the motor.


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