Presenters: Jason Varnell, Sr. Principal Transformer Engineer, Doble Engineering

Abstract: Power transformers are custom designed and manufactured, often with only one or two transformers built per design; therefore, there is a high-level of manual manufacturing processes by skilled workers. This presentation will provide an overview of the manufacturing processes for core-form transformers. All the major production processes from tank fabrication to final shipping will be discussed. Other key processes that will be presented are coil winding, core assembly, active part assembly, active part drying, final assembly and testing. Please join us for this informative webinar!

Presenter Bio:

Jason Varnell received a bachelor’s degree in Electrical Engineering (Honors) from the North Carolina State University with an emphasis in Power Systems and Power System Protection. Jason has over 15 years’ experience, having most recently served as Lead Design Engineer at SPX Transformer Solutions in Goldsboro, NC where he managed an electrical design group. He has extensive experience in core-form transformer design and construction, having personally designed several hundred power transformers. An active member of IEEE Transformer Committee, Jason has contributed to the revision or creation of a significant number of IEEE transformers. Since 2019, he works as a Transformer Consultant for the Global Professional Services at Doble Engineering Company, supporting customers and utilities with power transformer specification reviews, design reviews, manufacturing inspections, and FAT supervision and forensic analysis, among others.