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Electrical Maintenance Planning and Scheduling
Objectives

 

At the end of the course participants will be:

 

  • Understand AC & DC motor operation and construction
  • Specify, select and install motors
  • Specify protection requirements for motors
  • Install and commission motors
  • Fix faults on motors
  • Interpret motor performance curves
  • Interface control circuits of motors with PLCs/DCSs
  • Reduce downtime on electrical motors
  • Improve plant safety
  • Improve plant throughput
  • Reduce your spares usage and requirements

Outlines

 

Day 1:

FUNDAMENTALS OF MOTOR TECHNOLOGY

 

DC MOTOR THEORY, CONSTRUCTION AND MAINTENANCE

  • Basic construction and physical configuration and windings
  • Principles of operation and performance
  • Theory of operation
  • Types of DC motors
  • Separately excited motors
  • Series motors
  • Shunt motors
  • Compound motors
  • Long compound motors
  • Short compound motors
  • Insulation and cooling requirements

 

Day 2:

 

AC MOTOR THEORY, CONSTRUCTION AND MAINTENANCE

  • Basic construction and physical configuration and windings
  • Principles of operation and performance

 

THREE PHASE AC INDUCTION MOTORS

  • Components
  • Theory of operation
  • Induction motor design
  • Duty cycles
  • Insulation and cooling requirements
  • Starting methods
  • Selecting motors
  • Maintenance of AC machines
  • Types of faults, fault finding and testing of AC machines
  • Testing instrumentation

 

Day 3:

PROTECTION OF DC & AC MOTORS

  • Protective devices
  • Thermal overload
  • Over current/overload
  • Under-voltage/over-voltage
  • Under frequency for AC machine
  • Current unbalance for 3-phase machine
  • Earth fault protection
  • Pole slip/out of step
  • Stall protection/acceleration time/start

 

Day 4:

SPEED CONTROL OF ELECTRICAL MOTORS

  • DC Motor Control
  • Induction Motor Control  
  • Introduction to variable speed drives or
  • power electronic converters
  • Types and designs of variable speed
  • Synchronous Motor Control  
  • Resonance  
  • Reluctance Machine (Concepts and Torque & Cur­rent of RM)
  • Stepping Motors (Concepts and Torque & Current of Stepping Motors)

 

THE SELECTION OF AC CONVERTORS FOR VARIABLE

  • SPEED DRIVE APPLICATIONS
  • Selection procedure
  • Nature of the load
  • Selection of correct size motor and converter

 

Day 5:

 

Maintenance and Troubleshooting of Motors

  • Characteristics of motors  
  • Enclosures and cooling methods  
  • Design characteristics  
  • Insulation of AC motors
  • Failures in three-phase stator windings  
  • Predictive maintenance  
  • Motor troubleshooting
  • Diagnostic testing for motors
  • Repair and refurbishment of AC induction motors
  • Motor Temperature Classification
  • Motor Insulation Classification
  • Frame classification
  • Variable speed drives ( VFD - Frequency controllers  Principle of operation )
  • Vibration analysis •

Who Should Attend

 

Typical personnel who would benefit are:

  • Plant Engineers
  • Operations Personnel
  • Electrical Maintenance Technicians
  • Mechanical Engineers
  • Service & Maintenance Technicians
  • Electrical Maintenance Supervisors 

Duration

5 Days

Start Date End Date Country City

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