Development, design and conception of test units.

With our know-how we offer you testing devices
as well as production facilities in the field of medium and high voltage.

Our devices are always built for you in accordance with applicable standards and customer-specific requirements.

We can record measurement and test data using our database
and, if necessary, transfer it to your database or ERP system.
This even in connection with production orders or personalized data,
entirely according to your wishes.

Our customers include 90% of all suppliers of High and
medium voltage products.

Modular testing divices

Modular testing devices for routine testing of your high and medium voltage products are among our core products.

Starting with the field calculation, through the development, to the implementation of your product, we are happy to accompany you into a new dimension of testing!

Test and quick-fixing-systems for switchgear

We develop and build the right test facility for your specific application.

Based on process times and quantities, we design the right unit for your company.

Clamping systems

With our clamping systems we realize reductions in your set-up and clamping times, as well as possible gas work. Our clamping systems are always TÜV approved and designed for your application technology.

Design of holistic test fields

Based on the available space and the data of your products, we dimension test fields of all kinds. From the layout plan to the appropriate grounding concept to the measurement technology, we work out your individual and ideal test field.

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Construction of test tanks

With our extensive product portfolio, we also cover container construction.

Regardless of whether it is SF6 or Blue Air, with our partner we simulate the electrical fields as well as striking distances for a perfect product.

Whether made of aluminum or stainless steel,
whether pressure vessels, vacuum chambers or GIS replicas, all pressure vessels are always TÜV tested and fully documented.

Piece testing Device

You will receive your test facility in accordance with IEC or customer requirements. Cable accessories can be tested from 72.5kV up to 550kV. If the amount is highly dependent on a year, it is possible to test sleeves, plugs and terminations on a routine test device.

Assembly devices

An industrial company knows the requirements for assembly devices.
Positioning, alignment, fixing and also the tension of the components
is a main factor for efficient assembly.

In the energy sector, influencing factors such as metal chips, contact with the product or purity play an important role.

We have internalized all requirements through our broad know-how in this area.

Test facilities from 420KV to 550KV

Piece test fields from 12kV to 550kV

With an ACKERMANN piece test facility, you can meet the applicable standards, and we can even exceed them if you wish. When designing a test field, the technology to be used in connection with the designed routine test equipment is essential.

Routine test facility for GIS & outdoor use

We plan and build your test facility in connection with a GIS switchgear or a test field with voltage supply via an HV bushing. Important for us, <2pC in air and less than 0.5pC in GIS or gas.


For the perfect product in the field of medium and high voltage technology, we offer you advice from A to Z.

With experience, excellent technical understanding and extensive experience of customer requirements, we offer you the possibility of this Using knowledge for your company too.

Our consulting approach supports you from the project plan, through a detailed breakdown of costs, to the finished 3D model, which we present in VR glasses.