November 2009 An Introduction to Permanent-Magnet Gearless Motors & Drive Control Systems
This course is based on the article, An Introduction to Permanent-Magnet Gearless Motors and Drive Control Systems, published in the November 2009 issue and counts as 1 Contact Hour (0.1 CEU) towards recertification. Approved by: NAEC for CET and CAT, QEI Services and NAESA for QEI, (A maximum of 0.2 CEU for online courses per annual renewal period can be applied towards maintenance of qualifications for certified inspectors.) and the states of Florida, Pennsylvania, Arkansas, Kentucky, Virginia and West Virginia.
Learning Objectives - After reading this article you should have learned about the:
- Benefits of PMs: efficiency and potential regen applications
- Difference between AC asynchronous induction and PM synchronous gearless motors
- Similarity of commutation between DC and PM AC machines
- Importance of synchronism
- Encoder feedback: absolute position, resolution and technique
- Ride quality control: why more adjustment is needed
Enrollment Procedures:- Include your full name when purchasing the online course.
- Within 2 to 3 business days you will receive an email with the article and instructions for taking the exam.
- Study article.
- Use the provided online link, ID, and Password to login to the Online Testing Center.
- If you scored 80% or above you can immediately print your certificate of completion. If you score below 80% you will have up to two free retakes.