Converter Refurbishment

Repair of power converter modules

and entire power converter cabinets.

We repair GTO converters

up to the IGBT converter

We work all common

Power converter types

Converter refurbishment

We offer comprehensive services in the area of converter module remanufacturing, which form the basis for the long-term and thus efficient use of your capital assets.

Using state-of-the-art technology and highly trained employees, we service your power converter modules. Our expertise is your gain. We stand for expertly refurbished and therefore reliably functioning power converter modules in the long term.

I have two workshops,
A Goal

Refurbishment of your power converter modules in the shortest possible time

Refurbishment Segment 1

Refurbishment segment 2

Examples of reconditioned
Converter modules

Show all examples

Insight into our work

Preliminary check of your components

Upon receipt of your assembly, we will conduct a detailed incoming inspection. Based on this inspection, we will provide you with a meaningful refurbishment quote.

Your assemblies will be inspected promptly to avoid downtime and keep turnaround times as short as possible until all repair and maintenance work is completed and they are returned.

4-stage calculation

As a rule, the assessment serves to categorize your components into a 4-stage calculation, which forms the basis for a quote tailored to your specific needs and allows us to create a well-founded refurbishment offer for you in the shortest possible time.

Short uptime and high efficiency

We are aware of the urgency until your components are returned and are focusing our efforts on minimizing unnecessary downtime.

Tested Quality

Highest quality work doesn't cost us long return times!

Partial steps of the initial assessment (excerpt):

Visual pre-check for discoloration, fire damage, etc.
Review of all mechanical components (frame, bracing, busbars, cooling system, etc.)
Static testing of semiconductors and other active and passive components (e.g., GTOs or IGBTs, diodes, chokes, capacitors, and resistors) for usability

Static check

After the repair order is issued, all new semiconductor components and other active and passive components to be used for the repair are thoroughly inspected using state-of-the-art measuring equipment and highly skilled personnel.

Precise preliminary check – functional components

The dielectric strength is reliably testable: your „old“ semiconductors are already subjected to a static test during the preliminary inspection to draw conclusions about what led to the defect.

Of course, we digitally register your components and maintain their history.

Test procedure

The regular examination process includes the following sub-steps (excerpt):

Preliminary inspection of all components to be installed
Measurement of blocking voltage
Pre-measurement of the disc cells (They are pre-clamped to nominal clamping force using a clamping device that can generate a clamping force of up to 40 kN and subjected to a pre-measurement.)

Disassembly and cleaning

Careful dismantling of your components, with special attention to value-preserving work methods and gentle yet thorough cleaning, are the focus of our efforts at this stage of restoration.

We assure you that through precise and customized work, we will not cause unnecessary destruction during repairs.

Special equipment

With caution to success

In our workshops, we primarily use equipment and tools that have been specially designed and manufactured for the refurbishment of power converter modules. Over our many years of experience in the field of power converter module refurbishment, we have continuously invested in the acquisition and further development of numerous specialized devices, tools, and custom-built constructions.

Because we know what we are doing!

Exchange & Assembly of Individual Components

We prioritize the comprehensive replacement of all pre-damaged components in close consultation with our customers to ensure smooth and long-lasting use of your assembly after repair.

Cost-effectiveness

We keep an eye on cost-effectiveness:

In order to achieve extremely short lead times, we prefer to use spare parts from our large spare parts warehouse. This allows us to achieve lead times of less than 4 weeks.

ESD protection areas

Check – Select – Swap

For assembly work, spacious ESD-protected areas have been set up in our workshops to ensure a smooth and safe workflow.

We offer comprehensive, fast, and effective repair services for your power converters!

Test Field 1

For testing your components, we have two test fields equipped with state-of-the-art technology available. Both test stands are computer-controlled and monitored. Our testing technology is suitable for GTO and IGBT modules.

Key Figures Test Field 1

3.750 V
1.050 A effective
2 power supplies
Continuous load maximum 2,000 A
Controlled H-bridge on a resistive load
Control is via optical fibers at 820 nm or current loops

Test field 2

We have two test benches equipped with state-of-the-art technology available for testing your components. Both test benches are computer-controlled and monitored. Our testing technology is suitable for GTO and IGBT modules.

Key Figures Test Field 2

3.750 V
1.050 A effective
3-phase inductive load
Control is via fiber optic cable at 820 nm or current loops.