Electrical engineering courses

Practical troubleshing of electrical equipments and control circuits

Ref No: 2015066

INTRODUCTION

There is a large gap between what you learn in college and the practical knowhow demanded in the working environment, running and maintaining electrical equipment and control circuits. Practical Troubleshooting Of Electrical Equipment and Control Circuits focuses on the hands-on knowledge and rules-of-thumb that will help engineers and employers by increasing knowledge and skills, leading to improved equipment productivity and reduced maintenance costs. 
This book will help engineers and technicians to identify, prevent and fix common electrical equipment and control circuits. The emphasis is on practical issues that go beyond typical electrical principles, providing a tool-kit of skills in solving electrical problems, ranging from control circuits to motors and variable speed drives. The examples in the book are designed to be applicable to any facility.

PRE-REQUISITES

A basic understanding of electrical theory and problems you have encountered in the past would be helpful but a basic review is undertaken at the beginning of the course.

OBJECTIVES

When you have completed this workshop you willbe able to:
• Diagnose electrical problems "right-first-time"
• Eliminate the expensive trial and error approach
• Reduce unexpected downtime on electricalmotors and other equipment
• Improve plant safety
• Learn specific techniques to troubleshootequipment and control circuits
• Analyse Equipment problems
• Determine causes of equipment failure

CHAPTER 1: INTRODUCTION AND BASICS
1- INTRODUCTION
2- MAGNETIC FIELD
3- MAGNETIC AND ELECTRIC FIELDS
4- ELECTROMAGNETISM
5- ELECTROMAGNETIC INDUCTION
6- GENERATING ELECTRICAL CURRENT
7- THREE PHASE SYSTEM
8- WORLDWIDE AC VOLTAGES AND FREQUENCIES
9- PER-UNIT VALUES
10- DO IT YOURSELF

CHAPTER 2: DEVICES, SYMBOLS, AND CIRCUITS
1- DEVICES AND SYMBOLS 
2- ELECTRICAL CIRCUITS  
 2.1 Power circuits 
 2.2 Control circuit 
3- READING AND UNDERSTANDING ELECTRICAL DRAWINGS 
4- READING AND UNDERSTANDING LADDER LOGIC 
  4.1 PLC terminology 
  4.2 Ladder logic diagram 
  4.3 Basic terms used in ladder logic 
  4.4 Ladder logic instructions 
  4.5 The END instruction 
  4.6 Examples of simple ladder logic instruction 

CHAPTER 3: BASIC TROUBLESHOOTING PRINCIPLES
1- Introduction 
2- Basic principles in using a drawing and meter in troubleshooting circuits 
3- Checks for circuit continuity with disconnected supply 
4- Checks for circuit continuity with live supply
5- Tests and methods 
6- Testing devices
 6-1 Lamp indicators
 6-2 Voltmeters and ammeters
 6-3 Multimeters and ohmmeters
 6-4 C.R.O. cathode ray oscilloscope
 6-5 Safety standards for measuring instruments
 6-6 Insulation resistance testers or meggers
 6-7 Testing accessories 
7- Circuits 
8- Accurate wiring of circuits and connections
9- Tests for installation and troubleshooting

CHAPTER 4: TROUBLESHOOTING AC MOTORS
1. FUNDAMENTALS OF MOTOR TECHNOLOGY
2. BASIC PRINCIPLES OF ROTATING ELECTRICAL MACHINES
3. FUNDAMENTAL PRINCIPLES OF SPEED CONTROL
4. EFFICIENCY, TORQUE, INERTIA, HORSEPOWER / POWER FACTOR
5. TORQUE-SPEED CURVES
6. INDUCTION / WOUND ROTOR / SYNCHRONOUS MOTOR TYPES
7. BASIC CONSTRUCTION OF A MOTOR
8. PRINCIPLES OF OPERATION AND PERFORMANCE

CHAPTER 5: TROUBLESHOOTING MOTOR STARTING & CONTROL
1- INTRODUCTION
2- ELECTRICAL SYMBOLS
3- LINE DIAGRAMS
4- OVERLOAD PROTECTION
5- OVERLOAD RELAYS
6- MANUAL CONTROL
7- MAGNETIC CONTACTORS AND STARTERS
8- STARTER RATINGS
9- CASE STUDIES
10- MULTI-SPEED AND REVERSING STARTERS
11- REDUCED-VOLTAGE STARTING
12- SOLID-STATE REDUCED-VOLTAGE CONTROLLERS
13- PILOT DEVICES
14- CONTROL TRANSFORMERS
15- CONTROL RELAYS
16- TIMING RELAYS
17- PRESSURE SWITCHES
 18-  LOGO! LOGIC MODULE

CHAPTER 6: TROUBLESHOOTING AC VARIABLE SPEED DRIVES
1. INTRODUCTION
2. THE OVERALL CONTROL SYSTEM
3. POWER SUPPLY FOR THE CONTROL SYSTEM
4. DC BUS CHARGING SYSTEM
5. VSD CONTROL LOOPS
6. VECTOR CONTROL
7. BASIC FIXED V/F DRIVES
8. V/F SENSORLESS FLUX-VECTOR DRIVES (OPEN LOOP VECTOR)
9. CLOSED-LOOP FIELD ORIENTED VECTOR DRIVES
10. CURRENT FEEDBACK IN AC VARIABLE SPEED DRIVES
11. DC BUS CURRENT FEEDBACK
12. SPEED FEEDBACK FROM MOTOR

CHAPTER 7: MOTOR FAILURE ANALYSIS
1. INTRODUCTION
2. TYPES OF MOTOR FAILURE
3. COMMON CAUSES OF MOTOR FAILURE
4. MODERN DEVELOPMENTS

Trainees shall receive a portfolio containing a comprehensive course manual.

Attendees shall receive a certificate of attendance from AMAD Tech.