Transformers ensure that passenger and freight trains run reliably every day throughout the rail network. To avoid unplanned downtime and extend the service life of these critical components, insulating oil testing is the best preventive measure. This enables locomotive operators and maintenance service providers to detect signs of wear in transformers at an early stage and ensure safe railway operations through targeted maintenance measures. As a leading service provider for insulating oil analysis and transformer maintenance, Electrical Oil Services (EOS®) performs a variety of analyses in its insulating oil laboratory – quickly, reliably and in accordance with standards.
Transformers in locomotives operate under extreme thermal, mechanical and electrical loads. Only regular transformer oil testing provides reliable data, including on the dielectric strength and water content of the insulating oil. These results enable ageing processes and insulation damage to be detected at an early stage and maintenance intervals to be planned optimally.
VDE* and IEC compliant analyses enable:
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Since the hermetic design and limited oil volumes make direct refilling difficult, samples must be taken directly from the installed transformer using special, mobile equipment. This ensures safe, standard-compliant access to the insulating oil, regardless of how it is installed in the locomotive.
Only this professional sampling can ensure reliable and precise analysis in the laboratory.
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In the laboratory of Electrical Oil Services, we offer VDE- and IEC-compliant analyses in accordance with the latest standards and test procedures, which are specially tailored to transformers in locomotives and traction vehicles:
All results provide precise information about the condition of transformers in rail vehicles and form the basis for data-based maintenance planning. Further tests such as Furan and Furfural analyses and Dissolved Gas Analysis (DGA) enable early detection of ageing processes and fault gases in insulating oil.
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When time is of the essence, the express laboratory service from Electrical Oil Services is the answer: Insulating oil samples should be sent by courier to our laboratory, where the analyses can be completed within just several hours of receipt. This means that you receive reliable results on the condition of your traction transformers immediately and can replace them in good time if necessary.
VDE- and IEC-compliant analyses are an indispensable diagnostic tool for assessing the condition of transformers. They help to ensure smooth and long-lasting rail operations. With professional oil analyses in our laboratory, we support our customers with efficient maintenance planning and operational safety for passenger and freight trains.
Order your oil analysis today!
Contact us for your individual quote for VDE and IEC analysis for traction vehicle transformers.
PS: Do you know the benefit of our EOS® database? Detect damage early, avoid failures!All oil analyses for transformers in locomotives and rail vehicles can be recorded in the central EOS® database. Your advantage:
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*Note on terminology:
The term VDE analysis refers to transformer oil testing procedures based on standards set by the German Association for Electrical, Electronic & Information Technologies (VDE). These standards are widely recognised in the industry and are aligned with international norms such as IEC 60156. All analyses conducted in our laboratory comply with VDE guidelines and deliver reliable, regulation-based results.