Calibration Methods For Reproducible And Comparable Electromagnetic Partial Discharge Measurements In Power Transformers

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Calibration Methods for Reproducible and Comparable Electromagnetic Partial Discharge Measurements in Power Transformers

Author : Martin Siegel
Publisher : BoD – Books on Demand
ISBN 13 : 3752628189
Total Pages : 130 pages
Book Rating : 4.7/5 (526 download)

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Book Synopsis Calibration Methods for Reproducible and Comparable Electromagnetic Partial Discharge Measurements in Power Transformers by : Martin Siegel

Download or read book Calibration Methods for Reproducible and Comparable Electromagnetic Partial Discharge Measurements in Power Transformers written by Martin Siegel and published by BoD – Books on Demand. This book was released on 2020-11-20 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt: The reliability of electrical energy networks depends on the quality and availability of their electrical equipment, e.g., power transformers. Local failures inside their insulation can lead to breakdowns resulting in high outage and penalty costs. To prevent these destructive events, power transformers are tested for partial discharge (PD) activity in a routine test before shipment. Furthermore, PD activity can be evaluated as a diagnostic measurement on-site (on-line or off-line) or be constantly monitored during service using the ultra-high frequency (UHF) method. In this thesis, a calibration procedure is proposed for the UHF method used in power transformers, which is lacking so far. The calibration process is required to ensure both reproducibility and comparability of UHF measurements. Only a calibrated UHF measurement procedure can be deemed reliable and eventually be introduced to supplement in (site-)acceptance tests of power transformers. The proposed calibration method considers two factors: The influence of the UHF sensors' sensitivity and that of the UHF instrument characteristics, including accessories like cables, pre-amplifier, etc. The UHF instruments' influence is corrected by using a defined and invariable test signal as a reference for all recording devices comparable to the calibration method used in IEC 60270 for electrical PD measurement. The sensitivity of the UHF sensor is addressed by a characterization of UHF sensors using the antenna factor (AF) measured in a special reproducible setup, i.e., a GTEM cell. In this thesis, a self-built GTEM cell is presented, which is oil-filled to address the environmental conditions inside a transformer where the sensor will be used. With such a cell, influences on the AF of UHF sensors are investigated, and it is shown that sensor sensitivities measured in an air-filled cell can be corrected to the oil environment. A practical evaluation of the proposed calibration procedure is performed in a laboratory setup on a distribution transformer with different UHF instruments and sensors using artificial PD signals and real high voltage driven PD sources. Finally, this thesis identifies future research topics, which may be needed to improve the proposed UHF calibration procedure for power transformers and the UHF method in general.

Measurement of Partial Discharges in Power Transformers using Electromagnetic Signals

Author : Sebastian Coenen
Publisher : BoD – Books on Demand
ISBN 13 : 3844896139
Total Pages : 162 pages
Book Rating : 4.8/5 (448 download)

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Book Synopsis Measurement of Partial Discharges in Power Transformers using Electromagnetic Signals by : Sebastian Coenen

Download or read book Measurement of Partial Discharges in Power Transformers using Electromagnetic Signals written by Sebastian Coenen and published by BoD – Books on Demand. This book was released on 2012-08-17 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt: Partial discharges within power transformers emit electromagnetic waves. The current thesis aims to provide fundamental knowledge about measuring and interpretation of the electromagnetic signals. Investigations in laboratory are confirmed by several case studies. The applicability using electromagnetic signals for partial discharge measurements on transformer in the field is demonstrated under real test conditions.

Practical Partial Discharge Measurement on Electrical Equipment

Author : Greg C. Stone
Publisher : John Wiley & Sons
ISBN 13 : 1119833337
Total Pages : 581 pages
Book Rating : 4.1/5 (198 download)

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Book Synopsis Practical Partial Discharge Measurement on Electrical Equipment by : Greg C. Stone

Download or read book Practical Partial Discharge Measurement on Electrical Equipment written by Greg C. Stone and published by John Wiley & Sons. This book was released on 2023-08-28 with total page 581 pages. Available in PDF, EPUB and Kindle. Book excerpt: Practical Partial Discharge Measurement on Electrical Equipment Accessible reference dealing with (partial discharge) PD measurement in all types of high voltage equipment using modern digital PD detectors Practical Partial Discharge Measurement on Electrical Equipment is a timely update in the field of partial discharges (PD), covering both holistic concepts and specific modern applications in one volume. The first half of the book educates the reader on what PD is and the general principles of how it is measured and interpreted. The second half of the book is similar to a handbook, with a chapter devoted to PD measurements in each type of high voltage (HV) equipment. These chapters contain specific information of the insulation system design, causes of PD in that equipment, off-line and on-line measurement methods, interpretation methods, and relevant standards. The work is authored by four well-known experts in the field of PD measurement who have published hundreds of technical papers on the subject and performed thousands of PD measurements on all the different types of HV equipment covered in the book. The authors have also had relationships with PD detector manufacturers, giving them key insights into test instruments and practical measurements. Sample topics covered in the work include: Physics of PD, discharge phenomena (contact sparking and vibration sparking), and an introduction to PD measurement (electrical, optical, acoustic, and chemical) Electrical PD detection (types of sensors), RF PD detection (antenna, TEV), and PD instrumentation and display Off-line and on-line PD measurements, general principles of PD interpretation, and laboratory PD testing of lumped test objects PD in different types of HV equipment (power cables, power transformers, air insulated metal-clad switchgear, rotating machines, gas-insulated switchgear, and more) For HV equipment OEMs, users of HV equipment, or employees of companies that provide PD testing services to clients, Practical Partial Discharge Measurement on Electrical Equipment is an essential reference to help understand general concepts about the topic and receive expert guidance during specific practical applications.

Electrical & Electronics Abstracts

Author :
Publisher :
ISBN 13 :
Total Pages : 1948 pages
Book Rating : 4.3/5 (243 download)

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Book Synopsis Electrical & Electronics Abstracts by :

Download or read book Electrical & Electronics Abstracts written by and published by . This book was released on 1997 with total page 1948 pages. Available in PDF, EPUB and Kindle. Book excerpt:

High-Voltage Test and Measuring Techniques

Author : Wolfgang Hauschild
Publisher : Springer
ISBN 13 : 3319974602
Total Pages : 546 pages
Book Rating : 4.3/5 (199 download)

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Book Synopsis High-Voltage Test and Measuring Techniques by : Wolfgang Hauschild

Download or read book High-Voltage Test and Measuring Techniques written by Wolfgang Hauschild and published by Springer. This book was released on 2018-09-22 with total page 546 pages. Available in PDF, EPUB and Kindle. Book excerpt: The new edition of this book incorporates the recent remarkable changes in electric power generation, transmission and distribution. The consequences of the latest development to High Voltage (HV) test and measuring techniques result in new chapters on Partial Discharge measurements, Measurements of Dielectric Properties, and some new thoughts on the Shannon Theorem and Impuls current measurements. This standard reference of the international high-voltage community combines high voltage engineering with HV testing techniques and HV measuring methods. Based on long-term experience gained by the authors the book reflects the state of the art as well as the future trends in testing and diagnostics of HV equipment. It ensures a reliable generation, transmission and distribution of electrical energy. The book is intended not only for experts but also for students in electrical engineering and high-voltage engineering.

Evaluating Measurement Accuracy

Author : Semyon G Rabinovich
Publisher : Springer Science & Business Media
ISBN 13 : 1461467179
Total Pages : 324 pages
Book Rating : 4.4/5 (614 download)

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Book Synopsis Evaluating Measurement Accuracy by : Semyon G Rabinovich

Download or read book Evaluating Measurement Accuracy written by Semyon G Rabinovich and published by Springer Science & Business Media. This book was released on 2013-07-03 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt: “Evaluating Measurement Accuracy, 2nd Edition” is intended for those who are concerned with measurements in any field of science or technology. It reflects the latest developments in metrology and offers new results, but is designed to be accessible to readers at different levels: scientists who advance the field of metrology, engineers and experimental scientists who use measurements as tool in their professions, students and graduate students in natural sciences and engineering, and, in parts describing practical recommendations, technicians performing mass measurements in industry, quality control, and trade. This book presents material from the practical perspective and offers solutions and recommendations for problems that arise in conducting real-life measurements. This new edition adds a method for estimating accuracy of indirect measurements with independent arguments, whose development Dr. Rabinovich was able to complete very recently. This method, which is called the Method of Enumeration, produces estimates that are no longer approximate, similar to the way the method of reduction described in the first edition removed approximation in estimating uncertainty of indirect measurements with dependent arguments. The method of enumeration completes addressing the range of problems whose solutions signify the emergence of the new theory of accuracy of measurements. A new method is added for building a composition of histograms, and this method forms a theoretical basis for the method of enumeration.Additionally, as a companion to this book, a concise practical guide that assembles simple step-by-step procedures for typical tasks the practitioners are likely to encounter in measurement accuracy estimation is available at SpringerLink.

J & P Transformer Book

Author : Martin Heathcote
Publisher : Elsevier
ISBN 13 : 0080551785
Total Pages : 989 pages
Book Rating : 4.0/5 (85 download)

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Book Synopsis J & P Transformer Book by : Martin Heathcote

Download or read book J & P Transformer Book written by Martin Heathcote and published by Elsevier. This book was released on 2011-04-01 with total page 989 pages. Available in PDF, EPUB and Kindle. Book excerpt: Maintaining appropriate power systems and equipment expertise is necessary for a utility to support the reliability, availability, and quality of service goals demanded by energy consumers now and into the future. However, transformer talent is at a premium today, and all aspects of the power industry are suffering a diminishing of the supply of knowledgeable and experienced engineers.Now in print for over 80 years since initial publication in 1925 by Johnson & Phillips Ltd, the J & P Transformer Book continues to withstand the test of time as a key body of reference material for students, teachers, and all whose careers are involved in the engineering processes associated with power delivery, and particularly with transformer design, manufacture, testing, procurement, application, operation, maintenance, condition assessment and life extension.Current experience and knowledge have been brought into this thirteenth edition with discussions on moisture equilibrium in the insulation system, vegetable based natural ester insulating fluids, industry concerns with corrosive sulphur in oil, geomagnetic induced current (GIC) impacts, transportation issues, new emphasis on measurement of load related noise, and enhanced treatment of dielectric testing (including Frequency Response Analysis), Dissolved Gas analysis (DGA) techniques and tools, vacuum LTCs, shunt and series reactors, and HVDC converter transformers. These changes in the thirteenth edition together with updates of IEC reference Standards documentation and inclusion for the first time of IEEE reference Standards, provide recognition that the transformer industry and market is truly global in scale. -- From the foreword by Donald J. FallonMartin Heathcote is a consultant specializing in power transformers, primarily working for utilities. In this context he has established working relationships with transformer manufacturers on several continents. His background with Ferranti and the UK’s Central Electricity Generating Board (CEGB) included transformer design and the management and maintenance of transformer-based systems. * The definitive reference for all involved in designing, installing, monitoring and maintaining high-voltage systems using power transformers (electricity generation and distribution sector; large-scale industrial applications)* The classic reference work on power transformers and their applications: first published in 1925, now brought fully up to date in this thirteenth edition* A truly practical engineering approach to design, monitoring and maintenance of power transformers – in electricity generation, substations, and industrial applications.

Wavelet Methods in Statistics with R

Author : Guy Nason
Publisher : Springer Science & Business Media
ISBN 13 : 0387759611
Total Pages : 259 pages
Book Rating : 4.3/5 (877 download)

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Book Synopsis Wavelet Methods in Statistics with R by : Guy Nason

Download or read book Wavelet Methods in Statistics with R written by Guy Nason and published by Springer Science & Business Media. This book was released on 2010-07-25 with total page 259 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book contains information on how to tackle many important problems using a multiscale statistical approach. It focuses on how to use multiscale methods and discusses methodological and applied considerations.

Modern Antenna Handbook

Author : Constantine A. Balanis
Publisher : John Wiley & Sons
ISBN 13 : 1118209753
Total Pages : 1617 pages
Book Rating : 4.1/5 (182 download)

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Book Synopsis Modern Antenna Handbook by : Constantine A. Balanis

Download or read book Modern Antenna Handbook written by Constantine A. Balanis and published by John Wiley & Sons. This book was released on 2011-09-20 with total page 1617 pages. Available in PDF, EPUB and Kindle. Book excerpt: The most up-to-date, comprehensive treatment of classical and modern antennas and their related technologies Modern Antenna Handbook represents the most current and complete thinking in the field of antennas. The handbook is edited by one of the most recognizable, prominent, and prolific authors, educators, and researchers on antennas and electromagnetics. Each chapter is authored by one or more leading international experts and includes cover-age of current and future antenna-related technology. The information is of a practical nature and is intended to be useful for researchers as well as practicing engineers. From the fundamental parameters of antennas to antennas for mobile wireless communications and medical applications, Modern Antenna Handbook covers everything professional engineers, consultants, researchers, and students need to know about the recent developments and the future direction of this fast-paced field. In addition to antenna topics, the handbook also covers modern technologies such as metamaterials, microelectromechanical systems (MEMS), frequency selective surfaces (FSS), and radar cross sections (RCS) and their applications to antennas, while five chapters are devoted to advanced numerical/computational methods targeted primarily for the analysis and design of antennas.

High Voltage Test Techniques

Author : Dieter Kind
Publisher : Elsevier
ISBN 13 : 0080508103
Total Pages : 325 pages
Book Rating : 4.0/5 (85 download)

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Book Synopsis High Voltage Test Techniques by : Dieter Kind

Download or read book High Voltage Test Techniques written by Dieter Kind and published by Elsevier. This book was released on 2001-01-24 with total page 325 pages. Available in PDF, EPUB and Kindle. Book excerpt: The second edition of High Voltage Test Techniques has been completely revised. The present revision takes into account the latest international developments in High Voltage and Measurement technology, making it an essential reference for engineers in the testing field. High Voltage Technology belongs to the traditional area of Electrical Engineering. However, this is not to say that the area has stood still. New insulating materials, computing methods and voltage levels repeatedly pose new problems or open up methods of solution; electromagnetic compatibility (EMC) or components and systems also demand increased attention. The authors hope that their experience will be of use to students of Electrical Engineering confronted with High Voltage problems in their studies, in research and development and also in the testing field. Benefit from a completely revised edition Brings you up-to-date with th latest international developments in High Voltage and Measurement technology An essential reference for engineers in the testing field

Electric Power Transformer Engineering

Author : James H. Harlow
Publisher : CRC Press
ISBN 13 : 020348648X
Total Pages : 506 pages
Book Rating : 4.2/5 (34 download)

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Book Synopsis Electric Power Transformer Engineering by : James H. Harlow

Download or read book Electric Power Transformer Engineering written by James H. Harlow and published by CRC Press. This book was released on 2003-08-15 with total page 506 pages. Available in PDF, EPUB and Kindle. Book excerpt: Covering the fundamental theory of electric power transformers, this book provides the background required to understand the basic operation of electromagnetic induction as applied to transformers. The book is divided into three fundamental groupings: one stand-alone chapter is devoted to Theory and Principles, nine chapters individually treat majo

Principles of Measurement and Instrumentation

Author : Alan S. Morris
Publisher :
ISBN 13 :
Total Pages : 498 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Principles of Measurement and Instrumentation by : Alan S. Morris

Download or read book Principles of Measurement and Instrumentation written by Alan S. Morris and published by . This book was released on 1993 with total page 498 pages. Available in PDF, EPUB and Kindle. Book excerpt: This text presents the subject of instrumentation and its use within measurement systems as an integrated and coherent subject. This edition has been thoroughly revised and expanded with new material and five new chapters. Features of this edition are: an integrated treatment of systematic and random errors, statistical data analysis and calibration procedures; inclusion of important recent developments, such as the use of fibre optics and instrumentation networks; an overview of measuring instruments and transducers; and a number of worked examples.

Power Transformer Diagnostics, Monitoring and Design Features

Author : Issouf Fofana, Ph.D. ing. Chairholder
Publisher : MDPI
ISBN 13 : 3038974412
Total Pages : 255 pages
Book Rating : 4.0/5 (389 download)

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Book Synopsis Power Transformer Diagnostics, Monitoring and Design Features by : Issouf Fofana, Ph.D. ing. Chairholder

Download or read book Power Transformer Diagnostics, Monitoring and Design Features written by Issouf Fofana, Ph.D. ing. Chairholder and published by MDPI. This book was released on 2019-01-09 with total page 255 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a printed edition of the Special Issue "Power Transformer Diagnostics, Monitoring and Design Features" that was published in Energies

Engineering Metrology and Measurements

Author : Raghavendra,
Publisher : OUP India
ISBN 13 : 9780198085492
Total Pages : 0 pages
Book Rating : 4.0/5 (854 download)

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Book Synopsis Engineering Metrology and Measurements by : Raghavendra,

Download or read book Engineering Metrology and Measurements written by Raghavendra, and published by OUP India. This book was released on 2013-05 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Engineering Metrology and Measurements is a textbook designed for students of mechanical, production and allied disciplines to facilitate learning of various shop-floor measurement techniques and also understand the basics of mechanical measurements.

The Measurement of Noise Performance Factors

Author : M. G. Arthur
Publisher :
ISBN 13 :
Total Pages : 214 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis The Measurement of Noise Performance Factors by : M. G. Arthur

Download or read book The Measurement of Noise Performance Factors written by M. G. Arthur and published by . This book was released on 1974 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt: The metrology guide provides the basis for critical comparisons among seven measurement techniques for average noise factor and effective input noise temperature. The techniques that are described, discussed, and analyzed include the (1) Y-Factor, (2) 3-dB, (3) Automatic, (4) Gain Control, (5) CW, (6) Tangential, and (7) Cmparison Techniques. The analyses yield working equations and error equations by which accuracy capabilities are compared. Each technique is also analyzed for (a) frequency range for best measurement results, (b) special instrumentation requirements, (c) speed and convenience, (d) operator skill required, and (e) special measurement problems. General instrumentation requirements and practical measurement problems are discussed for the benefit of the non-expert metrologist. (Modified author abstract).

Frequency Standards

Author : Fritz Riehle
Publisher : John Wiley & Sons
ISBN 13 : 3527605959
Total Pages : 540 pages
Book Rating : 4.5/5 (276 download)

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Book Synopsis Frequency Standards by : Fritz Riehle

Download or read book Frequency Standards written by Fritz Riehle and published by John Wiley & Sons. This book was released on 2006-03-06 with total page 540 pages. Available in PDF, EPUB and Kindle. Book excerpt: Of all measurement units, frequency is the one that may be determined with the highest degree of accuracy. It equally allows precise measurements of other physical and technical quantities, whenever they can be measured in terms of frequency. This volume covers the central methods and techniques relevant for frequency standards developed in physics, electronics, quantum electronics, and statistics. After a review of the basic principles, the book looks at the realisation of commonly used components. It then continues with the description and characterisation of important frequency standards from atomic clocks, to frequency stabilised lasers. The whole is rounded of with a discussion of topical applications in engineering, telecommunications, and metrology.

Electromagnetic Compatibility in Railways

Author : Ade Ogunsola
Publisher : Springer Science & Business Media
ISBN 13 : 3642302815
Total Pages : 545 pages
Book Rating : 4.6/5 (423 download)

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Book Synopsis Electromagnetic Compatibility in Railways by : Ade Ogunsola

Download or read book Electromagnetic Compatibility in Railways written by Ade Ogunsola and published by Springer Science & Business Media. This book was released on 2012-08-14 with total page 545 pages. Available in PDF, EPUB and Kindle. Book excerpt: A railway is a complex distributed engineering system: the construction of a new railway or the modernisation of a existing one requires a deep understanding of the constitutive components and their interaction, inside the system itself and towards the outside world. The former covers the various subsystems (featuring a complex mix of high power sources, sensitive safety critical systems, intentional transmitters, etc.) and their interaction, including the specific functions and their relevance to safety. The latter represents all the additional possible external victims and sources of electromagnetic interaction. EMC thus starts from a comprehension of the emissions and immunity characteristics and the interactions between sources and victims, with a strong relationship to electromagnetics and to system modeling. On the other hand, the said functions are achieved and preserved and their relevance for safety is adequately handled, if the related requirements are well posed and managed throughout the process from the beginning. The link is represented by standards and their correct application, as a support to analysis, testing and demonstration.