Research and development at Breimer-Roth

The future
starts with us

We invest in research to develop now what tomorrow's technology will need.
Breimer-Roth stands for the future - in transformation.
If you want to be fit for the future, you need to experiment and recognize the signals on the market. Supported by the Federal Ministry for Economic Affairs and Energy, we are dedicated to the topics of the future and are researching solutions that will change transformer construction.

Research projects of Breimer-Roth GmbH

Our enthusiasm for technical innovation is our motivation. We are constantly developing our products and processes and ensure that we always exceed the state of the art. We invest a lot – and we use funding from the ZIM program, the Central Innovation Program for SMEs, which is offered by the Federal Ministry of Economics for precisely these purposes. Customers, partners and suppliers therefore rightly perceive our company as an innovation leader. In these projects, our R&D team is able to surpass itself time and again and push technological boundaries. And in the particularly competitive personnel market, we want to send the message through the transparent presentation of our R&D projects that you can find real challenges at Breimer-Roth. And that with economic strength and sustainably created substance.

Construction of transformers - Breimer-Roth

Passive-intrinsic inrush current limitation of low-voltage transformers

The aim of the proposed project is to develop a new generation of three-phase transformers up to 1000 kVA with passive-intrinsic inrush current limitation while maintaining a consistently high efficiency of >98% during continuous operation. The challenge lies in the fact that transformers with high efficiency generate high inrush currents and vice versa. The inrush current should be limited to a maximum of 2 times the rated current during continuous operation. A new, functional design combined with innovative approaches to passive control of the inrush current should make this possible:
1. Dynamic air gaps that disappear due to thermal expansion of the core material
2. Asymmetrical, split arrangements of the primary and secondary windings
3. Local saturation of the core material by an additional winding supplied with direct current
4. Reduction or complete elimination of the remanence of the core by cyclically passing through the
hysteresis curve after switching off
Innovations at Breimer-Roth

Development of a new type of plug-in core technology for 3-phase transformers, including production and measurement technology

The aim is to develop a new generation of three-phase transformers based on plug-in core technology, for which the necessary production and measurement technologies are also to be developed.

The production time for transformers in this power class is to be reduced from the current 6 to 8 hours to 1 hour in future. At the same time, the efficiency is to be increased from the current 92% to 96%, which corresponds to a halving of the power loss. As a direct visual inspection after the joining process is no longer possible, the correct execution of the core assembly is to be checked by a new type of acoustic inspection of the vibration behavior of the core.

Moisture detection system with capacitive measurement in damp rooms

The project is still in the development phase.