TRAINING ELECTRIC MOTOR CONTROL

TRAINING FUNDAMENTALS OF MOTOR TECHNOLOGY

TRAINING MAINTAIN AND TROUBLESHOOT ELECTRICAL MOTORS

DESKRIPSI
It is estimated that electrical drives and other rotating equipment consume about 50% of the total electrical energy consumed in the world today. The cost of maintaining electrical motors can be a significant amount in the budget item of manufacturing and mining industries. This workshop gives you a thorough understanding of electrical motor’s working, maintenance and failure modes and gives you the tools to maintain and troubleshoot electrical motors. You will gain valuable insight into the selection of the protection necessary to ensure your motors are protected against fault conditions, so as to ensure reliability and long life.

You will gain a fundamental understanding of the installation operation and troubleshooting of electric motors. Typical applications of electric motors in mining, manufacturing, materials handling and process control are covered in detail. You will learn the basic steps in specifying, installing, wiring and commissioning motors. The concluding section of the course gives you the fundamental tools in troubleshooting motors confidently and effectively

MATERI KHUSUS

FUNDAMENTALS OF MOTOR TECHNOLOGY

1. Basic principles of rotating electric machines

2. Fundamental principles of speed control

Efficiency, torque, inertia, horsepower/power factor
Torque-speed curves
How the motor produces torque
Types of motors
MOTOR THEORY, CONSTRUCTION AND MAINTENANCE

Basic construction and physical configuration, 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
MOTOR PROTECTION

Induction Motor Characteristics
Insulation Systems :
Temperature Limits
Service Factor
Thermal Limit Curves
Vendor Motor Data
Short Circuit Protection
Fuses
Circuit Breaker
MCP
Overload Protection
Overoad Relay
Thermal Protection
RTD
Thermistor
Solid State Motor Protection Relay
3. Load Related Failures

Application Abuse
Overloading
MOTOR TESTING METHODS

Insulation Life Overview
Testing methods
Insulation Resistance
Polarization Index
DC Hipot
DC Ramp Test
AC Hipot
Capacitance test
Dissipation Factor
Partial Discharge
Surge Test
Mechanical Testing
On-line Testing
MOTOR MAINTENANCE PRACTICES

1. Electrical Maintenance

2. Cooling Components

Periodic Testing
Load Check
Temperature
Mechanical Maintenance
Mechanically Intact
Vibration
Cleaning
Belts/ Couplings Guards

METODE

Presentation; Discussion; Case Study, Evaluation; Pre test & Post Test