Power and Distribution Transformers

INTRODUCTION

This highly participative training course is designed to provide participants with the skills to understand the requirements of a comprehensive Testing, Analysis, and Troubleshooting programme to maintain and prevent major faults from occurring in Power and Distribution Transformers.

The Power and Distribution Transformers training course is targeted at technical personnel working in the Medium to Large Power Generation and Distribution Systems, particularly in the Utilities, Oil & Gas, Mining, Minerals Processing, and Heavy Industries.

This training course is interactive and encourages delegates to participate through questions and answers, along with opportunities to discuss specific issues with the presenter that may result in appropriate solutions.

Participants will learn:

• The difference between Distribution and Power Transformers.

• Efficient Maintenance and Testing strategies.

• The On-Line Monitoring of Power Transformers.

• Maintenance Strategies – Reactive, Preventative, and Conditioned Based.

• The Importance of Insulating Oil Testing and Analyzing the results.

• The Causes and Consequences of Transformer Failure.

• Importance of Dissolve Gas Analysis.

TRAINING OBJECTIVES

Participants will:

• Update and increase their knowledge of Power and Distribution Transformers.

• Understand how these Transformers are utilized in Power Distribution.

• Learn about Transformer Periodic and Predictive Maintenance.

• Learn about the types of Tests used to determine Transformer Condition.

• Understand the importance of Transformer Oil Testing and Analysis.

• Learn about On-line Monitoring for Power Transformers.

• Understand the major causes of Transformer Failures.

• Learn about minor and major Transformer Repairs and Reconditioning.

WHO SHOULD ATTEND?

This training course will provide a detailed understanding of the critical role that Testing, Analysis, and Troubleshooting play in the maintenance and longevity of Power and Distribution Transformers.

It is specifically tailored to suit:

• Maintenance Professionals

• Maintenance Technicians

• Lead Electrical Support Engineers

• Electrical Superintendents – Testing & Protection

• Electrical Support Engineers – Maintenance Operations

• Electrical Superintendents and Lead Technicians – all above Industries

• Experienced Technicians & Electrical Technicians – all above Industries

TRAINING APPROACH

The Power and Distribution Transformers training course will combine presentations with interactive practical exercises, supported by video materials, activities, and case studies. Delegates will be encouraged to participate actively in relating their particular protection requirements at their workplace.

There will be adequate time given for group discussion during and at the end of each session, including detailed case studies and anecdotes based on the subject matter and the facilitator’s own experience in the field.

TRAINING OUTLINE

Day 1: Major Transformer Components and Operation

• Fundamentals of Power and Distribution Transformers.

• Transformer Design.

• Transformer Impedance.

• Transformer Cores, Windings, and Terminations.

• Tap Changers and Voltage Control.

• Cooling methods and Classifications to IEC standards.

Day 2: Transformer Inspections and Maintenance

• Characteristics and Maintenance Procedures for Insulating Oil.

• Maintenance of Transformer Cooling Systems.

• Maintenance of Bushings and Insulators.

• Maintenance of Transformer Mounted Ancillary Equipment.

• Temperature Gauges.

• Oil Level Gauges.

• Silica Gel Breathers.

• Overpressure Devices.

• Buchholz relay.

• Maintenance and inspection of gaskets.

• Detection of Leaks and Seepages.

Day 3: Test Types and Methods, Interpretation of Results

• Partial Discharge On-Line Monitoring.

• Oil Quality Index and the Breakdown Voltage Test.

• Turn Ratio Test.

• Winding Resistance Test.

• Sweep Frequency Response Analysis Test.

• Tan Delta Test and Polarisation Index.

Day 4: Additional Maintenance and Testing of Transformers

• The Importance of Maintenance and Testing.

• Dissolve Gas Analysis.

• Methods and interpretation of Dissolved Gas Analysis results.

• Thermography.

• Transformer Noise Suppression.

• Testing Transformer Protection and Controls.

Day 5: Failures and Preventative Measures

• Types and Causes of Failures.

• Internal Transformer Defects.

• Transformer Oil Regeneration.

• Insulation Drying.

• Case Studies and Examples of Failures.

• Discussion.

Language(s): English

Duration: One Week

Certificate of Completion: Upon successful completion of the course, participants will receive a Certificate of Completion from Al-Majd Pathways Centre (APC).