Connection technology made by TRAMAG

– What you can rely on

Insights into the transformer and choke production of a leading specialist

The quality of transformers, chokes and filters depends to a large extent both on their materials and on how these materials are combined and connected. TRAMAG has been an expert in the production of inductors for many years and has enormous expertise, especially in the electro-technical safety-relevant, low-impedance connection technology.

Cu/Cu connections

In this method of connection technology, the copper material of both connecting parts is joined together by brazing, i.e. by heat. The result is a highly stable, electrically and thermally robust connection, the conductivity remains fully intact.

Al/Cu connections

Another method of joining connecting parts is the cold pressure welding process. In this process, the material consisting of the different non-ferrous metals, aluminium and copper, is joined together not by heat but by friction and pressure. This process also ensures the required connection cross-section.

We are champions in joining connections with metals

High flexibility in the implementation of advanced connection technology

  • Different types (lug, clamp, stranded wire, bolt) and positions (front, rear, top, bottom) of connections possible
  • Several material variants possible
    • Tape for high currents
    • Round wire (also very thin wires for higher voltage)
    • Flat wire for higher currents and better utilisation of winding space
    • HF stranded wire for higher frequencies
  • Different combinations (e.g. aluminium tape/copper lug) possible

Optimized for every customer application

TRAMAG offers the best quality for safe operation and the most efficient economy in the installation of connections.

Our products are perfectly matched to your systems and thus create maximum system availability and function of the drive or machine.

Would you like to find out more about our customised products?

Contact us now


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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English content coming soon!

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