Course Details

This course is appropriate for a wide range of professionals but not limited to:

• Maintenance Technicians and Supervisors
• Electrical and Instrument Technicians
• Facilities and Plant Engineers
• Draftsmen and Designers
• Field Service Personnel

• Expert-led sessions with dynamic visual aids
• Comprehensive course manual to support practical application and reinforcement
• Interactive discussions addressing participants’ real-world projects and challenges
• Insightful case studies and proven best practices to enhance learning

By the end of this course, participants should be able to:

• Identify and differentiate between various types of electrical diagrams accurately.
• Interpret common electrical symbols and abbreviations used in schematics correctly.
• Trace power and control circuits through complex diagrams effectively.
• Read and understand P&ID and instrument loop diagrams successfully.
• Utilize diagrams to locate and troubleshoot faults in power equipment reliably.
• Apply knowledge of electrical standards (IEC, ANSI/IEEE) to diagram interpretation safely.

DAY 1

Fundamentals and Types of Diagrams

• Welcome and Introduction
• Pre-test
• Introduction to various types of electrical diagrams
• Understanding one-line diagrams and block diagrams
• Differentiating between elementary/schematic and wiring diagrams
• International standards for electrical symbols (IEC vs. ANSI)
• Reading title blocks, revision history, and notes on drawings
• Layout and interpretation of panel and assembly drawings

DAY 2

Reading Power and Control Schematics

• Tracing power circuits in three-phase systems
• Interpretation of three-phase motor control schematics
• Understanding ladder logic diagrams and relay logic
• Reading diagrams for variable speed drives and soft starters
• Interpretation of circuit protection schemes and devices
• Advanced use of wiring tables and cross-reference charts

DAY 3

Instrumentation and Loop Diagrams

• Introduction to Process and Instrumentation Diagrams (P&ID)
• Understanding ISA identification and tag numbers
• Interpretation of instrument loop diagrams and signal flow
• Reading diagrams for control valves and actuators
• Identifying analog and digital signal wiring standards
• Tracing signals through PLC and DCS input/output modules

DAY 4

Advanced Diagram Interpretation and Standards

• Interpreting complex interlocking and sequence circuits
• Reading substation protection and control drawings
• Understanding interconnection diagrams (external connections)
• Application of electrical codes (e.g., NEC/IEC) to diagrams
• Review of safety circuits and emergency shutdown system schematics
• Exercise

DAY 5

Troubleshooting and Diagram Management

• Using schematics to pinpoint electrical faults and errors
• Tracing short circuits and open circuits using diagrams
• Red-lining field changes and managing drawing revisions
• Digital diagram management systems and software tools
• Best practices for maintaining accurate electrical documentation
• Post-test
• Certificate ceremony