عنوان
پدید آورنده
موضوع
رده
TK2551 .P67 2018eb
TK2551
.
P67
2018eb
کتابخانه
محل استقرار
1523121041
1785612557
9781523121045
9781785612558
1785612549
9781785612541
Power transformer condition monitoring and diagnosis /
[Book]
edited by Ahmed Abu-Siada.
London :
Institution of Engineering and Technology,
2018.
©2018
1 online resource (xix, 304 pages) :
illustrations
IET Energy Engineering ;
104
Includes bibliographical references and index.
Intro; Contents; About the editor; Preface; List of acronyms; 1. Dissolved gas analysis, measurements and interpretations -- Carlos Gamez; 1.1 Introduction; 1.2 Insulating liquids; 1.2.1 Mineral oil; 1.3 The transformer as a chemical reactor; 1.3.1 Gas production mechanisms; 1.4 Oil analysis; 1.4.1 Gas chromatography; 1.5 Oil sampling; 1.5.1 Bottle sampling; 1.5.2 Syringe sampling; 1.6 Interpretation techniques; 1.6.1 Fault types; 1.6.2 Techniques that rely on the gas profile; 1.6.3 Techniques that rely on ratios; 1.6.4 Techniques that rely on rates of change; 1.6.5 Putting it all together
1.7 Future of oil analysis1.7.1 Online monitors; 1.7.2 Larger datasets; 1.7.3 Analysis automation; References; 2. Partial discharges: keys for condition monitoring and diagnosis of power transformers -- Ricardo Albarracıń, Guillermo Robles, Jorge Alfredo Ardila-Rey, Andrea Cavallini and Renzo Passaglia; Abstract; 2.1 Introduction; 2.2 Dielectric materials used in power transformers; 2.3 Effects of ageing in insulation systems of power transformers; 2.3.1 Thermal stress; 2.3.2 Mechanical stress; 2.3.3 Electrical stress; 2.3.4 Ambient stress
2.4 Condition monitoring techniques in power transformers2.4.1 Electrical measurements; 2.4.2 Apparent charge estimation: quasi-integration and calibration; 2.4.3 PD detection in transformers; 2.4.4 Unconventional methods of partial discharge measurements in power transformers; 2.4.5 Methods of partial discharge analysis; 2.5 Conclusions; Acknowledgements; References; 3. Moisture analysis for power transformers -- Beleń Garcıá, Alexander Ceśpedes and Diego Garcıá; 3.1 Introduction; 3.2 Moisture in transformer insulation
3.2.1 Risks associated to the presence of high levels of moisture in transformers3.2.2 Sources of moisture contamination in transformers; 3.3 Moisture dynamics in transformers; 3.3.1 Adsorption and desorption of moisture in cellulosic insulation; 3.3.2 Moisture distribution within transformer solid insulation; 3.3.3 Solubility of water in oil; 3.3.4 Moisture equilibrium between paper and oil; 3.3.5 Moisture equilibrium in alternative fluids; 3.3.6 Moisture dynamics in a transformer under operation; 3.4 Monitoring of moisture content in oil; 3.4.1 Periodical sampling of oil
3.4.2 On-line measure of oil moisture with capacitive sensors3.4.3 Interpretation of the moisture content of oil; 3.5 Estimation of the moisture content of solid insulation from moisture in oil measures; 3.5.1 Determination of moisture content of paper using the equilibrium charts; 3.5.2 Improved methodologies to estimate the moisture content of paper from the measures of moisture content of oil; 3.6 Dielectric response methods for the estimation of moisture in solid insulation; 3.6.1 Theoretical principles; 3.6.2 Frequency dielectric spectroscopy; 3.6.3 Recovery voltage method
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The following topics are dealt with: power transformer; condition monitoring; dissolved gas analysis; partial discharges; moisture analysis; paper; thermal ageing and mechanical oscillations.
Power transformer condition monitoring and diagnosis.
9781785612541
Monitoring.
Electric discharges.
Electric transformers-- Testing.
ageing.
chemical analysis.
condition monitoring.
Electric discharges.
Electric transformers-- Testing.
oscillations.
paper.
partial discharges.
power transformer insulation.
B0100
B2810D
B2830
B8350
621
.
314
TK2551
.
P67
2018eb
Abu-Siada, Ahmed
20200823054546.0
pn
مطالعه متن کتاب [Book]
Y
