Technical Challenges in the Commercialization of Transformers for Solar Photovoltaic Technology Applications

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Bonginkosi Allen Thango (Author) – Department of Electrical Engineering, Tshwane University of Technology, South Africa

Series: Renewable Energy: Research, Development and Policies
BISAC: TEC031010
DOI: https://doi.org/10.52305/JOEP9002

The presence of harmonic currents as a result of switching action of inverters, intermittent sunlight, and resonances triggered by the connection of the solar photovoltaic plant to the electrical network has spread the realization of the prospective rapid depletion of a transformer’s intended service lifetime owing to increased service losses and temperature rise in the active components. On the grounds of the supposed prospect of reduced transformer service lifetime under harmonic conditions, there is a growing interest by manufacturers to explore transformer design procedures that enable transformers to operate reliably under harmonic conditions. This book examines such procedures, highlighting the challenges involved in optimizing transformer performance.

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Table of Contents

Foreword

Preface

Chapter 1. Effect of Harmonic Load Currents in Transformer Losses

Chapter 2. Stray Losses Analysis using Finite Element Method

Chapter 3. Design Considerations for K-Rated Transformers

Chapter 4. Transformer Thermal Performance

Chapter 5. Degree of Polymerization of Cellulose Insulation

Chapter 6. Transformer Preventive Maintenance of Transformer Health Index through Stray Gassing

Chapter 7. A Diagnostic Study of Dissolved Gases in Transformers based on Fuzzy Logic Approach

Chapter 8. Loss Financial Evaluation

References

About the Authors

Additional information

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