Power Transformer Technologies

45 minutes presentation includes 10 minutes of Q&A.

9:00am - 9:45am

The Colt Group

Transformer Oil, Sf6 Gas & Nitrogen Leak Repairs
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Leaks develop at various locations on both new and aged equipment; in the past the repair options were limited to draining/de-pressurizing and re-gasketing, welding, applying epoxy or just wrapping with an absorbent material. Today these leaks can be repaired using a time-proven injection method that is completed while the leak is active and in many cases with the equipment in-service. No epoxies or welding - the sealant was specifically developed for use with electrical apparatuses, is flexible and easily removed. This presentation will explain the methodology with numerous “before and after” photographs and case histories.
 

9:45am - 10:30am

Integrated Engineering Software

Uses of Scripting in Transformer Design
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It is very common for insulator design to include simulation using numerical methods such as the Finite Element or Boundary Element methods. Issues commonly addressed include power loss, heating , electric and magnetic fields, capacitance and inductance. The simulation greatly reduces the need for physical testing and provides insight into the origin of problems. When a large number of model variations are to be simulated it is tedious and time-consuming to manually produce those and run then individually. This talk will demonstrate some cases where the process is greatly enhanced by parametric or scripting.
 

10:30am - 11:15am

Delta-X  Research

More Science than Art: Quantification of Risk with Transformer DGA Results
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Dissolved gas analysis is a common method for assessing the condition of a transformer. However, the conventional approach, as defined in IEEE C57.104, states that “DGA interpretation is… more of an art than a science”. The primary method outlined in the standard makes determining the relative severity of a given transformer’s condition difficult because there is not enough information to do more than provide an A-B-C/1-2-3 “report card” score. These scores are too generic to help prioritize the list of transformers within a fleet that need the most attention.

However, the idea that DGA interpretation is more art than science can be challenged. In this presentation, we’ll examine how the scientific method can be applied to DGA interpretation, to provide more and better results, including a discussion of the use of statistical models built using transformer failure data and a comparison of common DGA interpretation methods.

11:15am  – 12:00pm

DuPont

Transformer enhanced performance through innovative insulation systems.

• Meet the latest macro trends and emerging industry needs
• Learn about alternative insulation system solutions
• Discover the next generation of insulation: Aramid enhanced thermally upgraded kraft paper
• Find out how the combination of alternative insulation systems with design optimization can enable innovative power transformers for more resilient grids

12:00pm -12:45pm

Dynamic Ratings

Lessons Learned When Introducing and Applying Continuous Condition Monitoring Systems
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Remote monitoring is more important than ever before. Join us to learn about why and what to consider when implementing online condition based monitoring for your transformers. The knowledge you gain will help you make educated decisions about how to increase reliability and possibly extend the life of your transformers.