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Electric Motors & Control Circuits
TPC Trainco


Delivery Method
Seminar
Seminar

Target Audience
Whether your maintenance staff consists of new hires, engineers or anyone in between, this class can be tailored to meet your specific needs. This course is applicable for maintenance personnel working in manufacturing plants, commercial buildings, hospitals, schools, government buildings, waste water facilities, shopping centers, apartment buildings and related facilities.

Summary
A practical course for maintenance personnel working in industrial plants, public facilities and commercial buildings! This course is designed to help maintenance people identify what the real issue is when a motor burns out and how to prevent it from happening again. It involves understanding the control of the motor as well as the motor itself.

Description/Agenda

Course Competencies & Learning Objectives:

  • Identify the different types of motors and their appropriate applications
  • Test for & troubleshoot motor problems
  • Properly select and replace a motor
  • Keep a motor properly maintained
  • Identify & understand symbols used in common control circuit drawings
  • Use a logical, systematic approach to troubleshooting
  • Find and fix common control circuit problems

Course Outline:

I. Fundamentals of Motors

  • A. Glossary of Key Motor Terms
  • B. Types of motors available and their applications
  • C. Test equipment you need for testing and maintaining rotating electrical equipment
  • D. Quick checks in the field for troubleshooting rotating electrical equipment
  • E. Selecting the best replacement motor
  • F. Understanding Motor Nameplate Data
  • G. IEC Motor Ratings
  • H. Energy Issues and Motors
  • I. Tips for selecting Energy Efficient Motors

II. Safety Issues for Troubleshooting and Replacing Motors

  • A. Hazards of Rotating Electrical Equipment
  • B. OSHA Lockout/Tagout Requirements for Electrical Equipment
  • C. Determining motor power supplies and voltages
  • D. Verifying circuits de-energized – safely and correctly!
  • E. The latest Personal Protective Equipment (PPE) requirements
  • F. Visual Inspections of Motor Disconnects and control circuit operation

III. Motor Replacement Procedure

  • A. Verification of safe working condition
  • B. Properly de-terminating motors
  • C. Setting replacement motors
  • D. Overview of shaft coupling/alignment procedure options
  • E. Electrical checks on replacement motors before termination
  • F. Verification of proper size line conductors
  • G. Determining proper connection scheme using nameplate data
  • H. Selecting the best method of motor termination
  • I. Lugs and insulation tapes for termination
  • J. Termination kits
  • K. Methods of verifying proper phase rotation
  • L. Lubrication requirements
  • M. Sizing fuses and overloads
  • N. Final checks prior to re-energizing motor
  • O. Electrical, visual and mechanical checks for startup testing

IV. Motor Maintenance Issues

  • A. Testing motor windings
  • B. Megohmmeter testing of motors
  • C. Modern, state-of-the-art predictive maintenance testing for motors
  • D. Bearings and Lubrication
  • E. Motor Storage
  • F. Determining voltage and current imbalance and its effects
  • G. Recommended maintenance practices of NFPA 70B
  • H. Sizing and adjusting overloads per the NEC®
  • I. Common motor problems and how to find them
  • J. Fixes for common motor problems

V. Fundamentals of Control Circuits

  • A. Types of motor control
  • B. Symbols for control
  • C. Learn to read motor control schematic and ladder diagrams
  • D. Watch motor control circuits operate on-screen before the class
  • E. Learn the basics of PLC ladder logic
  • F. Watch PLC ladder diagrams operate on-screen before the class
  • G. Developing a logical, systematic approach to troubleshooting controls
  • H. Typical control circuit problems and how to find and fix them

VI. Motor Drives and Special Control Circuit Applications

  • A. Energy Management and motor drives
  • B. AC and DC drives overview
  • C. Motors for Variable Speed Drives
  • D. Variable Speed Drive Applications
  • E. HVAC applications
  • F. Servo motors and drives for manufacturing
  • G. Review operation of modern automation control such as “pick and place” and conveyor drives


CEU value: 1.4

Length of Course Instruction: 14 hours

 

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