Transformers often age unnoticed, and with them the insulating oil. Our analysis methods reveal damage before it leads to costly failures.

Advantages:

• Analysis of oil quality according to DIN EN 60422 / IEC 60422


• Detection of thermal aging, moisture & particles


• Early warning of critical conditions (e.g., gas formation)


• Testing for dielectric strength, acid number & water content


• Meaningful assessment of transformer condition

Our analysis methods are fast, conclusive, and provide planning certainty – ideal for maintenance strategies and budget control:

• No plant shutdown necessary (oil samples during operation)


• Analysis in a certified laboratory including test report


• Concrete recommendations for action in case of critical results


• Extension of your transformer's lifespan


• Prevention of costly consequential damages or downtimes

Our investigations cover all relevant parameters that indicate thermal, electrical, or chemical changes inside the transformer.

Typical test values:

• Dielectric strength


• Water content in ppm


• Acid number (neutralization number)


• Gas formation / Gas chromatography


• Furan analysis (paper aging) – optional
  Color, odor, particle contamination

Condition and oil analyses are an ideal complement to annual transformer maintenance – or as a basis for refurbishment decisions.

We take care of the following for you:

• Scheduling & on-site sampling


• Analysis in the ETB partner laboratory
  Report & evaluation including clear recommendations


• Documentation for audit & insurance verification
  Optional: Implementation of measures & replacement service