2017م - 1444هـ
LIST OF ABBREVIATIONS 4

LIST OF FIGURES 5

LIST OF TABLES 6







CHAPTER 5 GAS INTERPRETATION TECHNIQUES

OVERVIEW

5.1 Block Diagram to DGA

5.2 Key Gas Method

5.2 Thermal Faults

5.2.1. I Thermal faults in oil

5.2.1. II. Thermal faults in cellulose

5.3 Electrical Faults

5.3. I Corona

5.3. II Arcing

5.4 Key Gas Method software implementation to MATLAB GUI

5.5 Result and discussions

CHAPTER 6 RATIO METHODS TO INTERPRETATION OF DGA

OVERVIEW

6.1 Rogers Ratio Method

6.1.1 Introduction

6.1.2 Diagnostic Code Representation

6.1.3 Rogers ratio method software implementation to MATLAB GUI

6.1.4 Result and Discussions

6.2 IEC Ratio Analysis

6.2.1 Introduction

6.2.2 Diagnostic Code Representation

6.2.3 IEC ratio method software implementation to MATLAB GUI

6.2.4 Result and Discussions

6.3 Doernenburg Ratio Method

6.3.1 Introduction







6.3.2 Doernenburg ratio software implementation to MATLAB GUI

6.3.2.1 Step by Step procedure

6.3.2.2 Result and Discussions

CHAPTER 7 DUVAL TRIANGLE METHOD FOR DISSOLVED



GAS ANALYSIS



OVERVIEW

7.1 Introduction

7.2 Example of fault zone indication

7.3 Duval triangle fault zones coordinates

7.4 Software implementation of Duval triangle

7.5 Result and Discussions

CHAPTER 8 COMBINED DGA METHOD

OVERVIEW

8.1 Mapping Process Faults to each Diagnostic Method

8.2 Combined DGA Method

8.3 Software implementation to Combined DGA Method

8.4 Results and discussions

CHAPTER 9 CONCLUSION

OVERVIEW

9.1 Conclusion

9.2 Scope for Future

REFERENCES

















show some methods that used to analysis dissolved gases in power transformers with practical exsamples