Transformer Ageing : Modern Condition Monitoring Techniques and Their Interpretations.
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Full Text (via ProQuest) |
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Main Author: | |
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Format: | eBook |
Language: | English |
Published: |
Newark :
John Wiley & Sons, Incorporated,
2017.
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Table of Contents:
- Title Page ; Copyright Page ; Contents; Preface; Acknowledgments; Contributing Authors; Chapter 1 Transformer Insulation Materials and Ageing; 1.1 Introduction; 1.2 Solid Insulation
- Paper, Pressboard; 1.2.1 Cellulose Structure; 1.2.2 Commercial Cellulose Insulations; 1.2.3 Moisture Absorption by Paper and Pressboard; 1.2.4 Drying Paper and Pressboard; 1.2.5 Special Treatments of Insulation Paper/Pressboard
- Thermal Upgrading; 1.3 Liquid Insulation
- Oil; 1.3.1 Functions of Oil; 1.3.2 Types of Oil; 1.4 Insulation Ageing; 1.4.1 Introduction; 1.4.2 Factors Contributing to Ageing.
- 1.4.3 Preventing the Sources of Contamination1.4.4 Degradation of Cellulose; 1.4.5 Transformer Oil Degradation; 1.4.6 Measures to Minimize Oil Degradation; 1.4.7 Degradation Products in Impregnated Insulation Systems; 1.4.8 Reducing Ageing of Insulation; 1.5 Scope of the Book; References; Further Reading; Chapter 2 Overview of Insulation Diagnostics; 2.1 Introduction; 2.2 Dissolved Gas Analysis; 2.2.1 Background of DGA; 2.2.2 Typical Faults, Fault Gases, and their Diagnosis; 2.2.3 Diagnostic Methods; 2.3 Furan Analysis; 2.3.1 Background of Furan Analysis.
- 2.3.2 Paper Degradation and Furan Formation [17] 2.3.3 Furan Analysis for Insulation Condition Monitoring; 2.4 DP Measurements; 2.4.1 Background of DP Measurement; 2.4.2 Paper Ageing and DP [21] ; 2.4.3 Measurement of DP; 2.4.4 Insulation Condition Monitoring by DP Measurements and their Relations with Other Properties; 2.4.5 Insulation Life Prediction from DP Measurements; 2.4.6 Relationship of DP with Other Chemical-Based Condition Monitoring Indicators; 2.5 Traditional Electrical Techniques of Insulation Diagnosis; 2.5.1 Introduction; 2.5.2 Insulation Resistance [41]
- 3A.2.4 Modeling of the Response Function f(t) and Estimation of Conductivity3A.3 Practical PDC Measurement Issues [7] ; 3A.3.1 Terminal Connections; 3A.3.2 High-Voltage Source; 3A.3.3 Charging and Discharging Periods; 3A.3.4 Noise and Interference; 3A.3.5 Temperature Instability; 3A.3.6 Signal/Supply/Measurement Cable Length; 3A.4 Interpretation of PDC Measurement Results; 3A.4.1 Laboratory Experiments; 3A.4.2 Effects of Paper/Pressboard Moisture Content on PDC; 3A.4.3 Effects of Oil Moisture Content on PDC; 3A.4.4 Effects of Ageing and Related Impurities on PDC.
- 2.5.3 Polarization Index Test2.6 DDF, Capacitance, and Power Factor; 2.6.1 Dissipation Factor, Loss Factor, or tanδ; 2.7 Partial Discharge Measurements; 2.8 Conclusion; References; Chapter 3 Dielectric Response Measurements; Part A: Time Domain Polarization-Based Dielectric Response Measurements and Interpretations; 3A.1 Basic PDC Measurement Procedure [1] ; 3A.2 Basic Theory of Dielectric Response [1-4] ; 3A.2.1 Polarization and Depolarization Currents; 3A.2.2 Dielectric Response Function Estimation; 3A.2.3 Estimation of the Conductivity.