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  • A SANCONA employee repairs a Siemens power converter module. You can clearly see the cooling cans, the bus bar and the die-cast frame.
    Repair of Power Converter Modules
    and entire Power Converter Cabinets
  • _L0A4771.jpg
    We repair from GTO power converters
    up to IGBT power converters
  • Two SANCONA employees unwind a tension bandage from a power converter module.
    We repair all common
    power converter types

Power Converter Refurbishment

 

In the field of power converter module refurbishment, we offer comprehensive services that form the basis for the long-lasting and thus efficient use of your assets.

We repair power converter modules, using state-of-the-art technology and highly trained employees. Our know-how is your benefit. We stand for competently reconditioned and thus reliably functioning power converter modules in the long term.

  • SANCONA power converters - guaranteed reliability
  • SANCONA power converters - guaranteed reliability
  • SANCONA power converters - guaranteed reliability
  • Siemens power converter module, fast turnaround time and all components available
  • Alstom power converter module with plastic cladding and semiconductors - view of load connections
  • GTO tramway module

TWO workshops,
ONE goal:

Refurbishment of your power converter modules in the shortest possible time

Reconditioning segment 1

Workshop in which electronic devices, especially power converter modules are repaired.

Reconditioning segment 2

Converter refurbishment workshop specialized for repairing Bombardier converter modules.

Examples of refurbished
power converter modules

Insight into our work

With our modern measurement technology, we examine your power converters for causes of failure.
Preliminary inspection of your components

 

Upon receipt of your assembly, we perform a detailed incoming inspection. On the basis of this inspection, we will submit a well informed refurbishment offer.

Your assemblies are inspected immediately in order to avoid idle times and to keep turnaround times as short as possible until the completion of all repair and maintenance work and subsequent return delivery.

 

As a rule, the inspection findings serve to classify your components in a 4-step calculation, which forms the basis for a quotation tailored to your individual needs and enables us to provide you with a well-founded reconditioning quotation in the shortest possible time.

We are aware of the urgency of a timely return of your components and focus ourselves and our work on the maximum reduction of unnecessary idle times.

For us, the best quality work does not come at the expense of long return times!

Partial steps of the initial diagnosis (in extracts):

  • Visual pre-inspection for discoloration, fire damage, etc.
  • Inspection of all mechanical components (frame, clamping assembly, 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
We subject all installed semiconductors to a thorough static test.
Static testing

 

After the repair order has been placed, the new semiconductor components to be used for the repair and the other active as well as passive components are fully tested using the latest measurement technology and highly skilled employees.

Precise pre-testing - functioning components ​

Dielectric strength can be reliably tested: Your "old" semiconductors are already subjected to a static test during the preliminary test in order to draw conclusions about what led to the defect.

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

 

The routine testing procedure comprises the following sub-steps (in extracts):

  • Pre-testing of all components to be installed
  • Measurement of the blocking voltage
  • Pre-measurement of the disc cells (they are pre-tensioned to nominal pressing force by means of a clamping device, which can generate a pressing force of up to 40 kN, and subjected to a pre-measurement).
We carefully and accurately disassemble and clean your converters.
Disassembly and cleaning

 

Careful disassembly of your components with special attention to value-preserving work methods and gentle but thorough cleaning are the focus of our activities in this step of the refurbishment.

We assure you that we will not cause any unnecessary destruction by precise and adapted work during the reconditioning.

 

Success with care

In our workshops, we mainly use equipment and tools that have been specially designed and manufactured for the reconditioning of converter modules. During our many years of activity in the field of refurbishment of converter modules, we have constantly invested in the acquisition and further development of numerous special devices and tools as well as special constructions.

Because we know what we are doing!

We replace your individual components and reassemble them.
Replacement & assembly of individual components

 

We attach great importance to the full replacement of all pre-damaged components in close consultation with our customers in order to guarantee a smooth and long-lasting use of your assembly following the repair.

 

We keep an eye on cost effectiveness:

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

Check - Select - Exchange

For the assembly work, large-scale ESD protection areas are set up in our workshops to enable the work to proceed smoothly and safely.

We repair your converters comprehensively, quickly and effectively!

In test bay 1, we are equipped with state-of-the-art technology.
Test bay 1

 

For testing your components we have two test benches equipped with the latest technology. Both test benches are computer controlled and monitored. Our test 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
  • Controlled via optical fiber on 820 nm or current loops.
In test bay 2, we have the latest technology at our disposal.
Test bay 2

 

For testing your components, we have two test bays equipped with the latest technology. Both test bays are computer controlled and monitored. Our test 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 optics on 820 nm or current loops.
  • In our workshops, the most modern technology is at your disposal.
  • In our workshops, the most modern technology is at your disposal.
  • In our workshops, the most modern technology is at your disposal.

Possible scope of testing for power converters

 

The scope of testing is determined individually in close consultation with our customers. In addition to the standard tests to be carried out for all reconditioning work, we have excellent equipment and know-how to carry out further tests tailored to your individual needs.

  • The gate width to our reconditioning premises is 2 m.
  • The largest possible container size to be handled is 2 m x 2.5 m.
  • A crane with a load capacity of 2 t is available.
  • Special container sizes or higher payloads are available on request.
  • Air
  • Antifrogen N
  • Midel 7131

Well tested is half repaired!

Of course, we are happy to offer testing concepts tailored to your individual needs. Please do not hesitate to contact us.

We believe that a scope of testing that is as comprehensive as possible and adapted to your needs will help to avoid subsequent surprises during the repair process itself and to guarantee the long-lasting use of your power converter modules.

We will deliver all the information and documentation of the repair.

Documentation

 

Of course, we offer you a full documentation of the performed tests, test results, replaced components and general execution of the entire reconditioning process. This is indispensable for a smooth, long-term use of the refurbished components and an economically oriented mode of operation.

We create a comprehensive history for your refurbished power converter modules. Our focus is on a complex and complete refurbishment of your modules.

Do you have any questions?

 

Do you have any questions about converter reconditioning or would you like to get advice from our experts?