Moisture in Transformer Oil Behavior-a Deeper Look into a Complex Phenomenon

As our understanding of how moisture movement in transformers improves, so does the evolution of how we measure it and what it means to the life of the asset. 

Based on the attendance levels and positive feedback from this webinar, we’re offering another opportunity to attend again. As a continuation of the first webinar in this series entitled “Understanding Moisture Dynamics in Power Transformers”, in this presentation we will review some of the fundamentals previously covered but also discuss some more advanced topics highlighted below and share more data and insights gained from field test results.

In this webinar you will learn about:

  • Moisture in Transformers background – where does it come from and what effect does it have?
  • New Data on the Moisture Exchange between Cellulose and Oil
  • Moisture Measurement Hysteresis and the Moisture “Cloud”
  • Correlating Online Moisture in Oil Measurement to Cellulose Moisture
  • Benefits of Online Drying of Transformers

Please join us for this webcast sponsored by Vaisala.

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Steven Jiroutek

Business Development Manager - Vaisala

<>Steve Jiroutek is the Business Development Manager for Industrial Applications at Vaisala, Americas.  With over 12 years of experience at Vaisala, he oversees the business and strategy development for targeted industrial applications with specific focus on condition based monitoring of high voltage assets.  He is responsible for identifying strategic partnerships and defining the measurement, technology and product needs of the markets.  Steve holds a Bachelor of Science degree in Chemical Engineering from the University of New Hampshire.




Vaisala offers a diverse portfolio of real-time online measurement transmitters for utilities who want to mitigate risks and safeguard their critical assets. ​ Using Vaisala moisture-in-oil, hydrogen-in-oil, temperature, dew point, pressure and density meters as well as our latest addition, the Vaisala Optimus™ DGA monitor, utilities can safely increase equipment performance and prepare timely maintenance plans to prevent unexpected outages. ​ 24/7 monitoring enables operators to receive early warnings of sudden changes in their transformer of moisture, H2, CO, CO2, CH4, C2H6, C2H4, and C2H2, in all conditions without waiting for lab results. ​ Vaisala is the innovator of online moisture monitoring of transformer oil and with 80 years’ experience in measurement instrument development and equipment used in over 150 countries, Vaisala continues to develop ground-breaking new technologies for the Power Industry.  Please visit us at www.vaisala.com/power.