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Power Transformer Testing & Maintenance 28th July – 1st April 2025 (Weekdays)

This five-day course will provide a turbo-machinery package operator and maintenance technician with the knowledge and skills necessary to operate ... Show more
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HPI Train Hub
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This course aims to equip participants with the knowledge and skills necessary for effective testing, maintenance, and troubleshooting of power transformers to ensure their reliability and longevity.

This course is ideal for electrical engineers, technicians, and maintenance personnel involved in the operation and maintenance of power transformers. It balances theoretical knowledge with practical skills to ensure participants are ready to handle real-world challenges.

 

Course Objectives:

1. Understand Transformer Fundamentals: Gain a thorough understanding of transformer design, operation, and principles.

2. Identify Common Issues: Learn to identify and diagnose common transformer faults and operational problems.

3. Perform Testing Procedures: Develop skills in conducting various testing procedures, including electrical and mechanical tests.

4. Maintenance Practices: Learn preventive and corrective maintenance practices to extend transformer lifespan.

5. Safety Protocols: Understand safety standards and procedures for working with high-voltage transformers.

6. Interpretation of Test Results: Learn to analyze and interpret test results for effective decision-making.

7. Develop Troubleshooting Skills: Build troubleshooting skills for resolving issues during transformer operation.

 

Course Contents:

1. Introduction to Power Transformers:

Overview of transformer types and applications

Transformer construction and components (core, winding, insulation)

Principles of operation (magnetic flux, core losses, etc.)

Importance of testing and maintenance

 

2. Transformer Testing Methods:

Electrical Testing:

Insulation resistance testing (Megger testing)

Transformer turns ratio (TTR) testing

Power factor and dissipation factor testing

Sweep frequency response analysis (SFRA)

Dielectric testing (AC and DC Hi-pot tests)

Leakage reactance testing

 

Mechanical Testing:

Core inspection and tests

Bushing tests and inspection

Tap changer testing and inspection (manual and automatic)

Diagnostic Testing:

Dissolved gas analysis (DGA)

Partial discharge testing

Infrared thermography for hot spot detection

 

3. Transformer Maintenance Practices:

Preventive Maintenance:

Visual inspections and routine checks

Cleaning, oil testing, and analysis (moisture content, dielectric strength)

Importance of maintaining cooling systems (oil, air, water cooling)

Corrective Maintenance:

Identifying and repairing oil leaks

Replacing faulty components (bushings, tap changers, etc.)

Reconditioning and refurbishing transformers

 

4. Safety Standards and Procedures:

Electrical safety rules for high-voltage equipment

Personal protective equipment (PPE) and safety gear

Lockout/Tagout (LOTO) procedures

Handling and disposal of transformer oil (environmental safety)

 

5. Analysis and Interpretation of Test Results:

Understanding normal vs. abnormal test results

Interpreting dissolved gas analysis results for fault diagnosis

Using test data for predictive maintenance planning

Transformer life assessment and remaining life estimation

 

6. Troubleshooting and Fault Diagnosis:

Identifying symptoms of common transformer issues (e.g., overheating, noise, oil quality deterioration)

Troubleshooting methods for internal and external faults

Case studies of transformer failures and resolutions

 

7. Practical Hands-On Sessions:

Conducting actual tests on a transformer

Case studies and hands-on troubleshooting exercises

Understanding test equipment and software tools used in transformer diagnostics

 

8. Course Wrap-up and Assessment:

Review of key concepts

Q&A sessions for participant queries

Course assessment (written or practical tests)

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Course details
Duration 10 hours
Video 9 hours
Level Advanced

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