Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Siemens has developed a thermography-based analysis system for the diagnosis and repair of converter modules

24.06.2011
The Siemens Division Industry Solutions has developed a system for analyzing frequency converter modules. Thermal images are recorded in order to investigate both defects and functioning parts of a module.

These are then compared with corresponding images in a reference database. If sources of faults are identified, the test system automatically outputs recommendations for repairs and spare parts. This reduces the time required to diagnose and repair frequency converter modules by up to 30 percent. That, in turn, not only reduces the expenditure on repairs and spare parts, but also enables realistic estimates to be made of the remaining service life and risk of the module failing.

Electronic modules are subject to diverse loads during operation that can lead to power losses. These loads frequently cause the temperature of the components and their surroundings to rise, and this can be made visible by thermography. A thermal imaging camera is used to capture the temperature distribution on the surface. This method requires only a few minutes to check electronic modules for thermal risks, damage and critical areas. The analysis quickly provides reliable information about the current operating condition, long before damage would otherwise become visible. The Siemens automatic module analysis system also uses this methodology. It involves dismounting the control unit, and subjecting it to an electrical functional test. The temperature distribution over the surface is then determined by measuring the infrared radiation.

A thermal image is taken immediately after the module is switched on in order to detect any faults arising during the ramp-up sequence. This is followed by further functional tests, for each of which new images are taken. The recordings are then compared with reference images in a database. The sources of the faults thus identified are immediately output as a report, which includes a recommended repair, and specifies the spare parts required. The exact repair required for the defective component can then begin.

The Siemens thermography-based fault analysis system is used by the repair service for frequency converters and, if required, can also be adapted for use on other types of modules. It contributes toward reducing the time required to diagnose and repair frequency converter modules, and lowers the expenditure on repairs and spare parts. It takes less time than conventional methods of analysis which do not use thermography, and also has a hit rate up to ten percent higher. That reduces the failure rate of the components and increases their reliability. As well as for identifying the repair required, the test system can also be used to examine the quality characteristics of modules. For example, complete batches can be tested, and the resulting report given to the ordering party. The results are input into further development of the modules concerned.

Further information about industrial maintenance services can be found at: http://www.siemens.com/simain

The Siemens Industry Sector (Erlangen, Germany) is the worldwide leading supplier of environmentally friendly production, transportation and building technologies. With integrated automation technologies and comprehensive industry-specific solutions, Siemens increases the productivity, efficiency and flexibility of its customers in the fields of industry and infrastructure. In fiscal 2010, which ended on September 30, 2010, revenue from continuing operations of the Industry Sector (excluding Osram) totaled around €30.2 billion. At the end of September 2010, Siemens Industry Sector had around 164,000 employees worldwide without consideration of Osram. Further information is available on the Internet at: www.siemens.com/industry.

The Siemens Industry Solutions Division (Erlangen, Germany) is one of the world's leading solution and service providers for industrial and infrastructure facilities comprising the business activities of Siemens VAI Metals Technologies, Water Technologies and Industrial Technologies. Activities include engineering and installation, operation and service for the entire life cycle. A wide-ranging portfolio of environmental solutions helps industrial companies to use energy, water and equipment efficiently, reduce emissions and comply with environmental guidelines. With around 29,000 employees worldwide (September 30), Siemens Industry Solutions posted sales of €6.0 billion in fiscal year 2010. www.siemens.com/industry-solutions

Rebecca Zapfe | Siemens Industry
Further information:
http://www.siemens.com/simain

More articles from Machine Engineering:

nachricht Making lightweight construction suitable for series production
24.04.2017 | Laser Zentrum Hannover e.V.

nachricht It Takes Two: Structuring Metal Surfaces Efficiently with Lasers
15.03.2017 | Fraunhofer-Institut für Lasertechnik ILT

All articles from Machine Engineering >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Making lightweight construction suitable for series production

More and more automobile companies are focusing on body parts made of carbon fiber reinforced plastics (CFRP). However, manufacturing and repair costs must be further reduced in order to make CFRP more economical in use. Together with the Volkswagen AG and five other partners in the project HolQueSt 3D, the Laser Zentrum Hannover e.V. (LZH) has developed laser processes for the automatic trimming, drilling and repair of three-dimensional components.

Automated manufacturing processes are the basis for ultimately establishing the series production of CFRP components. In the project HolQueSt 3D, the LZH has...

Im Focus: Wonder material? Novel nanotube structure strengthens thin films for flexible electronics

Reflecting the structure of composites found in nature and the ancient world, researchers at the University of Illinois at Urbana-Champaign have synthesized thin carbon nanotube (CNT) textiles that exhibit both high electrical conductivity and a level of toughness that is about fifty times higher than copper films, currently used in electronics.

"The structural robustness of thin metal films has significant importance for the reliable operation of smart skin and flexible electronics including...

Im Focus: Deep inside Galaxy M87

The nearby, giant radio galaxy M87 hosts a supermassive black hole (BH) and is well-known for its bright jet dominating the spectrum over ten orders of magnitude in frequency. Due to its proximity, jet prominence, and the large black hole mass, M87 is the best laboratory for investigating the formation, acceleration, and collimation of relativistic jets. A research team led by Silke Britzen from the Max Planck Institute for Radio Astronomy in Bonn, Germany, has found strong indication for turbulent processes connecting the accretion disk and the jet of that galaxy providing insights into the longstanding problem of the origin of astrophysical jets.

Supermassive black holes form some of the most enigmatic phenomena in astrophysics. Their enormous energy output is supposed to be generated by the...

Im Focus: A Quantum Low Pass for Photons

Physicists in Garching observe novel quantum effect that limits the number of emitted photons.

The probability to find a certain number of photons inside a laser pulse usually corresponds to a classical distribution of independent events, the so-called...

Im Focus: Microprocessors based on a layer of just three atoms

Microprocessors based on atomically thin materials hold the promise of the evolution of traditional processors as well as new applications in the field of flexible electronics. Now, a TU Wien research team led by Thomas Müller has made a breakthrough in this field as part of an ongoing research project.

Two-dimensional materials, or 2D materials for short, are extremely versatile, although – or often more precisely because – they are made up of just one or a...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Expert meeting “Health Business Connect” will connect international medical technology companies

20.04.2017 | Event News

Wenn der Computer das Gehirn austrickst

18.04.2017 | Event News

7th International Conference on Crystalline Silicon Photovoltaics in Freiburg on April 3-5, 2017

03.04.2017 | Event News

 
Latest News

NASA's Fermi catches gamma-ray flashes from tropical storms

25.04.2017 | Physics and Astronomy

Researchers invent process to make sustainable rubber, plastics

25.04.2017 | Materials Sciences

Transfecting cells gently – the LZH presents a GNOME prototype at the Labvolution 2017

25.04.2017 | Life Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>