Course Details

This training course is suitable to a wide range of professionals but will greatly benefit:

• Electrical Engineers and Technicians
• Maintenance Engineers and Supervisors
• Power Plant and Substation Engineers
• Utility and Industrial Power System Operators
• Facility Engineers responsible for electrical systems
• Technical Managers and Inspectors

• 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:

• Understand transformer fundamentals, types, and construction features.
• Select appropriate transformers based on application, load, and system requirements.
• Analyze transformer performance parameters and efficiency.
• Operate transformers safely and in accordance with best engineering practices.
• Diagnose common transformer faults using modern testing methods.
• Apply preventive and predictive maintenance strategies.
• Understand insulation systems, cooling methods, and protection schemes.
• Interpret test data and assess transformer condition.
• Implement troubleshooting procedures to minimize downtime.
• Extend transformer service life through proper monitoring and maintenance.

DAY 1

Transformer Fundamentals and Construction

• Welcome and introduction
• Pre-test
• Principles of electromagnetic induction and transformer theory
• Types of transformers: power, distribution, current, potential, auto, and instrument transformers
• Construction details: core, windings, insulation, and tank design
• Cooling methods and insulation classes
• Transformer ratings, nameplate data, and standards (IEC, IEEE, ANSI)

DAY 2

Transformer Selection and Applications

• Criteria for transformer selection: capacity, voltage, frequency, and environment
• Application considerations in industrial, commercial, and utility systems
• Connection configurations: delta, wye, zig-zag
• Tap changers: on-load and off-load operation
• Parallel operation and load sharing
• Efficiency, losses, and energy optimization

DAY 3

Operation, Protection, and Monitoring

• Transformer operation under normal and abnormal conditions
• Energization and de-energization procedures
• Protection schemes: overcurrent, differential, Buchholz relay, and thermal protection
• Instrumentation and monitoring systems
• Power quality and its effect on transformer performance
• Transformer testing and performance evaluation

DAY 4

Troubleshooting and Fault Diagnosis

• Common transformer faults and symptoms
• Diagnostic techniques:

• Winding resistance
• Insulation resistance
• Turns ratio and polarity tests
• Sweep frequency response analysis (SFRA)
• Dissolved gas analysis (DGA)
• Partial discharge detection

• Interpretation of test results and fault localization
• Case studies of transformer failures and corrective actions

DAY 5

Maintenance and Life Extension Strategies

• Preventive and predictive maintenance programs
• Oil analysis and condition-based maintenance
• Transformer refurbishment and replacement criteria
• Thermal management and load management techniques
• Safety procedures during testing and maintenance
• Emerging technologies: digital transformers, smart monitoring, and IoT integration
• Course review, discussion, and practical examples
• Post-test
• Certificate ceremony