In the final post in this 8 part case study series, you will see Todd Hatfield explain the final assembly of the 5500HP, 13,200v, synchronous motor in the clip below from a presentation given at the 2018 RPM Symposium.
The presentation below covers:
- Assembling the rotor to the adapter base with the stator
- Using the steel plate made for shipping to also center and pin the rotor, making for a quicker duplication on sight
- Adjusting the exciter to increase the amperage from 80 ADC to 99 ADC
- Removing the original motor and the two adjacent DC exciters
- Installing the motor and doing a test run
- Reinstalling the DC generators to ensure the motor can drive the generators
Catch up on any of the series that you might have missed...
- What is an AC Synchronous Motor?
- Part 1 - Problem Identification and Potential Solution
- Part 2 - Evaluating Surplus Motor Options and Initial On-site Application Review
- Part 3 - Electrical and Mechanical Redesign Engineering
- Part 4 - Mechanical Design of Shaft and Rotor
- Part 5 - Electrical Design of Rotor
- Part 6 - Stator Redesign and Rewind
- Part 7 - Adapter Base
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.