Syllabus – NEC Article 430 – Motors, Motor Circuits and Controllers

This training will prepare the electrician or industrial maintenance technician to perform common tasks on various kinds of motors and controls frequently found in the field. The course will cover material throughout the NEC and in Article 430 specifically which will help them work more efficiently and safely on these apparatus. Fundamentals and details will be covered. In addition, motor circuits including variable frequency drive and soft-starters will be covered. The student will be able to properly evaluate the requirements of motor circuits and controls. Troubleshooting techniques will be covered. A final exam will be given and a certificate of completion will be awarded to those with a passing score.

Part 1 – Day 1 / 8 Hours (7 contact hours – CEUs)

Section 1 – The Fundamentals 1. Induction and the Induction Motor 2. The rotating field of an induction motor 3. Parts of a Motor 4. Horsepower, Speed and Torque 5. Various applications of induction motors and the types of loads driven Section 2 – Motor Identification 1. Motor nameplate data (430.7) 2. In the absence of legible information 3. T-Lead identification

Section 3 – 430 Part XIII Grounding – All Voltages 1. Non-current-carrying parts of motors and controllers are liable to become accidentally energized 2. Stationary motors generally all into the category of required grounding, with some exceptions 3. Provisions for portable machines 4. Controllers are grounded per 250.8 5. Methods of connection to equipment grounding conductor per 250 Part VI (250.110-250.126) Section 4 – Motor Control Centers (MCC) Part VIII 1. Defining a controller 2. Starting, stopping and reversing motor direction of rotation 3. Starting and stopping - older methods and with soft-starts 4. Speed control – Introduction to the VFD

Part 2 – Day 2 / 8 Hours (7 contact hours – CEUs)

Section 5 – 430 Part III: Motor and Branch-Circuit Overload Protection 1. When to use the nameplate and when to use Tables (Tables 430.248 through 430.250) 2. Protecting the motor 3. Protecting the circuit Section 6 – 430 Part IV: Motor Branch-Circuit and Ground-Fault Protection 1. Over current protection 2. Ground fault protection 3. Motor protection

Section 7 – Making the Connection 1. Annex D – Example D8 Motor Circuit Conductors, Overload Protection and Short Circuit and Ground Fault Protection 2. The Ugly Book Method – 2008 Edition page 42 3. Six Steps Method Section 8 – Final Exam

Registration Contact Russell Olson Phone 256-312-0969 (russell@fsiir.com) or Glenn Gould 256-546-1681 extension 112 (glenn@fsiir.com) Location the FSI Facility – 104 College St. Glencoe AL or at your facility!

Schedule A - Weekdays (Class 1 tentative upon class making of at least 6 people) Part 1 – TBD Part 2 – TBD Schedule B – Saturday Only (Class 2 tentative upon class making of at least 6 people) Part 1 – TBD Part 2 – TBD

Price Part 1 - $98 Part 2 - $49 Both Parts $125 Items to bring Your calculators, computers or other devices Your Code Book and your Ugly Book Notebooks and writing utensils you prefer