Electrical Diagrams & Control Circuits
Electrical Diagrams & Control Circuits
OBJECTIVES
- Understand and design single line diagrams
- Analyze electrical problems
- Apply relevant symbols to the single line diagrams
- Determine correct troubleshooting techniques by reading the control circuits
- Determine fault current values from single line diagram
WHO SHOULD ATTEND?
- Operations & maintenance engineers, supervisors & technicians
- Maintenance technicians
- Electricians
- Electrical supervisors
- Plant electricians
COURSE OUTLINE
Day One
Introduction, types of drawings and symbols
- Importance and relevance of drawings
- Categories of electrical drawing and their characteristics
- Purposes served by different type of electrical drawings
- International electrical symbols
- Drawings that need symbols
- Computer aided drafting (CAD) drawings
Day Two
Electrical blueprint and single line diagrams
- Single line diagram verses three line diagram
- Why single line diagrams?
- Types of single diagrams
- Interpreting single diagrams
- Fault current calculation based on information in the single line diagram
- Trouble shooting an electrical installation with reference to the electrical blueprint
Day Three
Schematic diagrams and its merits
- Purpose and characteristics
- Symbols used in schematic diagrams
- Typical examples
- Interpreting electrical equipment schematic diagrams
- Uninterruptible power supply schematic diagram
- Motor installation schematic diagram
Day Four
Control circuits and design
- Motor starters control and design
- Types of AC motor control circuits
- Interlock control circuits
- Protective relays and timers in control circuits
- Fail safe design
- Ladder diagrams
Day Five
Logic circuit and troubleshooting
- Logic gates and characteristics
- Digital logic functions
- Programmable logic controllers
- Process and instrument diagrams
- Troubleshooting strategies
- Q&A and wrap-up session