Download or read book Recent Trends in the Condition Monitoring of Transformers written by Sivaji Chakravorti and published by Springer Science & Business Media. This book was released on 2013-10-21 with total page 289 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent Trends in the Condition Monitoring of Transformers reflects the current interest in replacing traditional techniques used in power transformer condition monitoring with non-invasive measures such as polarization/depolarization current measurement, recovery voltage measurement, frequency domain spectroscopy and frequency response analysis. The book stresses the importance of scrutinizing the condition of transformer insulation which may fail under present day conditions of intensive use with the resulting degradation of dielectric properties causing functional failure of the transformer. The text shows the reader how to overcome the key challenges facing today’s maintenance policies, namely: The selection of appropriate techniques for dealing with each type of failure process accounting for the needs of plant owners, plant users and wider society; and Cost-efficiency and durability of effect. Many of the failure-management methods presented rely on the fact that most failures give warning when they are imminent. These potential failures give rise to identifiable physical conditions and the novel approaches described detect them so that action can be taken to avoid degeneration into full-blown functional failure. This “on-condition” maintenance means that equipment can be left in service as long as a specified set of performance standards continue to be met, avoiding the costly downtime imposed by routine and perhaps unnecessary maintenance but without risking equally expensive failure. Recent Trends in the Condition Monitoring of Transformers will be of considerable interest to both academic researchers in power systems and to engineers working in the power generation and distribution industry showing how new and more efficient methods of fault diagnosis and condition management can increase transformer efficiency and cut costs.
Download or read book VPNs Illustrated written by Jon C. Snader and published by Addison-Wesley Professional. This book was released on 2015-01-09 with total page 699 pages. Available in PDF, EPUB and Kindle. Book excerpt: Virtual private networks (VPNs) based on the Internet instead of the traditional leased lines offer organizations of all sizes the promise of a low-cost, secure electronic network. However, using the Internet to carry sensitive information can present serious privacy and security problems. By explaining how VPNs actually work, networking expert Jon Snader shows software engineers and network administrators how to use tunneling, authentication, and encryption to create safe, effective VPNs for any environment. Using an example-driven approach, VPNs Illustrated explores how tunnels and VPNs function by observing their behavior "on the wire." By learning to read and interpret various network traces, such as those produced by tcpdump, readers will be able to better understand and troubleshoot VPN and network behavior. Specific topics covered include: Block and stream symmetric ciphers, such as AES and RC4; and asymmetric ciphers, such as RSA and EIGamal Message authentication codes, including HMACs Tunneling technologies based on gtunnel SSL protocol for building network-to-network VPNs SSH protocols as drop-in replacements for telnet, ftp, and the BSD r-commands Lightweight VPNs, including VTun, CIPE, tinc, and OpenVPN IPsec, including its Authentication Header (AH) protocol, Encapsulating Security Payload (ESP), and IKE (the key management protocol) Packed with details, the text can be used as a handbook describing the functions of the protocols and the message formats that they use. Source code is available for download, and an appendix covers publicly available software that can be used to build tunnels and analyze traffic flow. VPNs Illustrated gives you the knowledge of tunneling and VPN technology you need to understand existing VPN implementations and successfully create your own.
Download or read book Radiation Effects in Polymeric Materials written by Vijay Kumar and published by Springer. This book was released on 2019-02-09 with total page 417 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides an introduction of how radiation is processed in polymeric materials, how materials properties are affected and how the resulting materials are analyzed. It covers synthesis, characterization, or modification of important materials, e.g. polycarbonates, polyamides and polysaccharides, using radiation. For example, a complete chapter is dedicated to the characterization of biodegradable polymers irradiated with low and heavy ions. This book will be beneficial to all polymer scientists in the development of new macromolecules and to all engineers using these materials in applications. It summarizes the fundamental knowledge and latest innovations in research fields from medicine to space.
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
Download or read book Polish Migration to the UK in the New European Union written by Dr Kathy Burrell and published by Ashgate Publishing, Ltd.. This book was released on 2012-12-28 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since the 2004 enlargement of the European Union over half a million Polish migrants have registered to work in the United Kingdom, constituting one of the largest migration movements in contemporary Europe. Drawing on research undertaken across a wide range of disciplines – history, economics, sociology, anthropology, film studies and discourse analysis – and focusing on both the Polish and British aspects of this phenomenon - both emigration and immigration – this edited collection investigates what is actually new about this migration flow, what its causes and consequences are, and how these migrants' lives have changed by moving to the United Kingdom. As the first book to deal with Polish migration to the United Kingdom, Polish Migration to the UK in the 'New' European Union will appeal to scholars across a range of social sciences, whose work concerns migration and the migration process.
Download or read book IEEE Standard for Information Technology written by and published by . This book was released on 2004 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Life Less Ordinary written by John Hodge and published by . This book was released on 1997 with total page 234 pages. Available in PDF, EPUB and Kindle. Book excerpt: From the author of the TRAINSPOTTING and SHALLOW GRAVE screenplays, a novel about the unpredictable course of fate. An aspiring novelist meets a rich woman with a slender grip on the real world. They are ill-matched but become lovers, with a little help from the archangel Gabriel. Tied to the release of a Hollywood feature film.
Download or read book IEEE Transactions on Dielectrics and Electrical Insulation written by and published by . This book was released on 2002 with total page 508 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book IEEE Standard Test Code for Dry type Distribution and Power Transformers written by and published by Inst of Elect & Electronic. This book was released on 1996 with total page 75 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Methods for performing tests specified in IEEE Std C57.12.01-1989 and other referenced standards applicable to dry-type distribution and power transformers are described. This standard is intended for use as a basis for performance, safety, and the proper testing of dry-type distribution and power transformers. This standard applies to all dry-type transformers except instrument transformers, step-voltage and induction voltage regulators, arc furnace transformers, rectifier transformers, specialty transformers, and mine transformers".
Download or read book EMMC2 written by A. Bertram and published by . This book was released on 1998 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Dry Type Power Transformers written by and published by . This book was released on 2017 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book IEEE Guide for Loading Mineral oil immersed Transformers written by and published by . This book was released on 2003 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book IEEE Guide for Diagnostic Field Testing of Electric Power Apparatus written by IEEE Power Engineering Society. Power System Instrumentation and Measurements Committee and published by Inst of Elect & Electronic. This book was released on 1995 with total page 59 pages. Available in PDF, EPUB and Kindle. Book excerpt: Diagnostic tests and measurements that are performed in the field on oil-immersed power transformers and regulators are described. Whenever possible, shunt reactors are treated in a similar manner to transformers. Tests are presented systematically in categories depending on the subsystem of the unit being examined. A diagnostic chart is included as an aid to identify the various sybsystems. Additional information is provided regarding specialized test and measureing techniques.
Download or read book IEEE Recommended Practice for Monitoring Electric Power Quality written by and published by . This book was released on 2009 with total page 81 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: This recommended practice encompasses the monitoring of electrical characteristics of single-phase and polyphase ac power systems. It includes consistent descriptions of conducted electromagnetic phenomena occurring on power systems. This recommended practice describes nominal conditions and deviations from these nominal conditions that may originate within the source of supply or load equipment or may originate from interactions between the source and the load. Also, this recommended practice discusses power quality monitoring devices, application techniques, and the interpretation of monitoring results. Keywords: assessment, compatibility, dip, distortion, electromagnetic phenomena, harmonics, imbalance, instruments, monitoring, power quality, rms variation, sag, swell, transient, unbalance.
