Basic principles
1.1 Introduction
1.2 Basic principles of electrical machines
1.3 AC power systems
1.4 Meters used in troubleshooting
2 Devices, symbols, and circuits.
2.1 Devices and symbols
2.2 Electrical circuits
2.3 Reading and understanding electrical drawings
2.4 Reading and understanding ladder logic
2.5 Wires and terminal numbering
3 Basic troubleshooting principles
3.1 Introduction
3.2 Basic principles in using a drawing and meter in troubleshooting circuits
3.3 Checks for circuit continuity with disconnected supply
3.4 Checks for circuit continuity with live supply
3.5 Tests and methods
3.6 Testing devices
3.7 Circuits
3.8 Accurate wiring of circuits and connections
3.9 Tests for installation and troubleshooting
4 Troubleshooting AC motors and starters
4.1 Introduction
4.2 Fundamentals of three-phase AC motors
4.3 Fundamental of single-phase AC motors
4.4 DC motors.
4.5 Motor enclosures
4.6 Motor terminal identification and connection diagram
4.7 Motor rating and insulation types
4.8 Operating a motor for forward and reverse operation
4.9 Motor braking methods.
4.10 Motor testing
4.11 Measurements used for a motor
4.12 Motor failures and methods to extend its life..
There is a large gap between the theory of electron flow, magnetic fields and that of troubleshooting electrical equipment and control circuits in the plant. In this book, we try to avoid or at least minimize discussions on the theory and instead focus on showing you how to troubleshoot electrical equipment and control circuits. The book helps to increase your knowledge and skills in improving equipment productivity whilst reducing maintenance costs. Reading this book will help you identify, prevent and fix common electrical equipment and control circuits. The focus is ‘outside the box’. The emphasis is on practical issues that go beyond typical electrical theory and focus on providing those that attend with the necessary toolbox of skills in solving electrical problems, ranging from control circuits to motors and variable speed drives.
This book focuses on the main issues of troubleshooting electrical equipment and control circuits of today to enable you to walk onto your plant or facility to troubleshoot and fix problems as quickly as possible. This is not an advanced book but one aimed at the fundamentals of troubleshooting systems. The book is very practical in its approach to troubleshooting and the examples you will be shown are applicable to any facility
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