Below is a 2 minute clip of an hour long presentation given by Todd Hatfield during the 2018 RPM Symposium. Part 6 of this 8 part series focuses on the redesign and rewind of the stator for the 5500HP, 13,200v, synchronous motor.This video will describe:
- The new engineered stator winding design and CAD drawing
- Using a DC welder to heat the coils, allowing them to be more flexible in order to keep them from cracking
- Connecting the leads to match the original 5500HP, 13,200v, synchronous motor
Make sure to read the rest of the series starting with...
- What is an AC Synchronous Motor?
- Part 1 - Problem Identification and Potential Solution
- Part 2 - Evaluating Surplus Motor Option and Initial On-Site Application
- Part 3 - Electrical and Mechanical Redesign Engineering
- Part 4 - Mechanical Design of Shaft and Rotor
- Part 5 - Electrical Design of Rotor
Todd A. Hatfield
HECO – All Systems Go
About the author:
Todd Hatfield is a Senior Electrical Engineer at HECO. He has over 35 years' experience in generator and electric motor repair and engineering. Todd has a BS in Electrical Engineering, and his areas of expertise are: electrical and mechanical motor redesigns and engineering, root cause of failure analysis, and quality electric motor rebuilding.