IEEE C57.155 2014
$47.67
IEEE Guide for Interpretation of Gases Generated in Natural Ester and Synthetic Ester-Immersed Transformers
| Published By | Publication Date | Number of Pages |
| IEEE | 2014 | 52 |
New IEEE Standard – Active. Natural and synthetic ester-immersed transformers are handled in this guide. The following is addressed in this guide: a) The theory of combustible gas generation in a natural and synthetic ester-filled transformer; b) Interpretation of the dissolved gas analysis results; c) Recommended actions based on the interpretation of dissolved gas analysis results; d) A bibliography of related literature
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 1 | IEEE Std C57.155-2014 Front Cover |
| 3 | Title page |
| 5 | Important Notices and Disclaimers Concerning IEEE Standards Documents |
| 8 | Participants |
| 10 | Contents |
| 12 | Important Notice 1. Overview 1.1 Scope 1.2 Purpose |
| 13 | 1.3 Limitation 2. Normative references |
| 14 | 3. Definitions, acronyms, and abbreviations 3.1 Definitions 3.2 Acronyms and abbreviations |
| 15 | 4. General theory 4.1 Background |
| 16 | 4.1.1 Stray gassing 4.1.2 Electrical stress 4.1.3 Thermal stress 4.1.3.1 Acid production |
| 17 | 4.1.3.2 Carbon oxides production 4.1.3.3 Ethylene production 4.1.3.4 Methane and ethane production 5. Interpretation of gas analysis 5.1 Cellulose thermal decomposition |
| 18 | 5.2 Pyrolysis 5.3 Electric discharge decomposition 5.3.1 Partial discharge (corona) decomposition 5.3.2 Electrical arcing decomposition 6. Application of DGA to electrical equipment 6.1 Threshold transformer gas concentrations |
| 19 | 6.2 Recognition of a gassing problem—establishing operating priorities |
| 20 | 6.3 Suggested operating procedures utilizing the detection and analysis of combustible gases |
| 21 | 6.3.1 Atmospheric gases 6.3.2 Cellulose |
| 22 | 6.3.3 Combustible gases 6.3.3.1 Arcing activity 6.4 Determining average combustible gas generating rates |
| 23 | 7. Procedures for obtaining samples |
| 24 | Annex A (informative) DGA database statistical analysis (Dukarm [B8]) A.1 Data preparation A.2 Statistical analysis |
| 26 | A.3 Results of the analysis |
| 27 | Annex B (informative) ASTM D7150 stray gas results (Hanson, et. al [B1]) |
| 28 | Annex C (informative) Stray gassing due to fluorescent light exposure (Hanson, et al. [B10]) |
| 29 | Annex D (informative) Laboratory pyrolysis experiment information |
| 37 | Annex E (informative) EPRI laboratory pyrolysis and arcing experiment information (DGA Interpretation in Natural Ester Fluids [B7]) E.1 Pyrolysis EPRI laboratory experiment summary E.1.1 Comparison of mineral oil and soybean- based insulating liquid results |
| 38 | E.2 Arcing laboratory experiment summary [B7] |
| 39 | Annex F (informative) Theory |
| 41 | F.1 Causes of gas formation F.1.1 Stray gassing |
| 42 | F.1.2 Liquid thermal decomposition F.1.2.1 Acid production |
| 43 | F.1.2.2 Carbon oxides and ethylene production |
| 44 | F.1.2.3 Hydrogen and hydrocarbon production |
| 45 | Annex G (informative) Duval Triangle analysis method G.1 Example |
| 48 | Annex H (informative) Case study H.1 Soybean-based natural ester liquid case study [B5] |
| 50 | H.2 Synthetic ester insulating liquid case studies |
| 51 | Annex I (informative) Bibliography |
| 52 | Back Cover |
