Transformers

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Electrical Transformers and Power Equipment

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Author by : Anthony J. Pansini
Languange Used : English, France, Spanish, Italia and chinese
Page : 394
Isbn : 0881733113
Identifier : 9780881733112
Release : 1999
Publisher by : The Fairmont Press, Inc.
Category : Electric apparatus and appliances
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Description : Read Now Electrical Transformers And Power Equipment by Anthony J. Pansini and you can download with pub, pdf, txt, doc, and more file format with free account. this book provides a comprehensive resource on technical, application and operational aspects of all types of electrical transformers and power systems, covering operation theory; transformer construction, installation, operation and maintenance; principal transformer connections; transformer types; troubleshooting; circuit breakers; disconnecting devices; fuses; lightning or surge arrestors; protective relays; storage batteries; reactors; capacitors; rectifiers; instruments; and insulation. illustrations and diagrams are included throughout the written presentation.

Transformers & Induction Machines

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Author by : M.V.Bakshi U.A.Bakshi
Languange Used : English, France, Spanish, Italia and chinese
Page : 534
Isbn : 9788184313802
Identifier : 8184313802
Release : 2009
Publisher by : Technical Publications
Category :
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Description : Read Now Transformers Induction Machines by M.V.Bakshi U.A.Bakshi and you can download with pub, pdf, txt, doc, and more file format with free account. basic concepts : concept of coupled circuits, dot convention, writing network equilibrium equations in coupled circuits (problems on coupled circuits excluded), principle of transformer action for voltage transformation, constructional details of shell type and core type single-phase and three-phase transformers, description of the following types of transformers - power transformer, distribution transformer, constant voltage transformer, constant current transformer, variable frequency transformers, auto-transformers.single-phase transformers : concept of ideal transformer, equation for e.m.f. induced in the two windings, voltage transformation ratio, ideal transformer on no-load and loaded condition with corresponding phasor diagrams, concept of m.m.f. balance in the magnetic circuit of an ideal transformer, current transformation ratio, concept of referring impedance connected on one side of ideal transformer to the other side, practical transformer-how it deviates from the ideal transformer, development of exact equivalent circuit of a practical transformer-visualization of a practical transformer as an ideal transformer combined with imperfections of electric and magnetic circuits, approximate equivalent circuit of a practical transformer.phasor diagram of a practical transformer for both no-load and loaded conditions, losses, power and all-day efficiency, regulation, testing of transformers - o.c. test, s.c. test and predetermination of efficiency and regulation, sumpner s test, parallel operation - need, conditions to be satisfied for parallel operation, load sharing.three-phase transformers : all types of three-phase transformer connections including open delta, choice of connection, bank of single-phase transformers for three-phase operation, phase conversion using transformers, scott connection for three-phase to two-phase conversion, labelling of three-phase transformer terminals, phase shift between primary and secondary and vector groups, conditions for proper operation of three-phase transformers in parallel. three-winding transformers : advantages and disadvantages of three-winding transformers, equivalent circuit. basic concepts of induction machines : concept of rotating magnetic field, operating principle, construction, classification and types - single-phase, three-phase, squirrel-cage, slip-ring, double-cage types.three-phase induction motor : phasor diagram of induction motor on no-load and loaded conditions, visualization of a three-phase induction motor as a generalized transformer with a rotating secondary and obtaining its equivalent circuit, different kinds of power losses in an induction motor, efficiency, performance evaluation-output power, torque, efficiency, current and power factor. torque-slip characteristics covering motoring, generating and braking regions of operation, induction generator, no-load and blocked rotor tests, circle diagram and therefrom performance evaluation of the motor, cogging and crawling, equivalent circuit and performance of double-cage and deep-bar motors. starting and control of three-phase induction motor : need for starter, dol, y-delta and auto-transformer starting, rotor resistance starting, electronic starters, speed control - voltage, frequency and rotor resistance variations.single-phase induction motor : double revolving field theory and principle of operation, types of single-phase induction motors: split-phase, capacitor start, shaded pole motors.

Transformers

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Author by : Bhel
Languange Used : English, France, Spanish, Italia and chinese
Page : 614
Isbn : 9780070483156
Identifier : 0070483159
Release : 2003-01-01
Publisher by : Tata McGraw-Hill Education
Category : Electric motor industry
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Description : Read Now Transformers by Bhel and you can download with pub, pdf, txt, doc, and more file format with free account. this book is the collective effort of eminent experts from bharat heavy electricals limited (bhel), a leading transformer manufacturer in india. an editorial committee perused the complete material, to integrate it into a homogenous book and to ensure complete continuity between the chapters. a list of authors and members of the editorial committee is included in the book.

Power Transformers Principles and Applications

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Author by : John Winders
Languange Used : English, France, Spanish, Italia and chinese
Page : 304
Isbn : 9780203910474
Identifier : 0203910478
Release : 2002-04-12
Publisher by : CRC Press
Category : Technology & Engineering
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Description : Read Now Power Transformers by John Winders and you can download with pub, pdf, txt, doc, and more file format with free account. complete with equations, illustrations, and tables, this book covers the basic theory of electric power transformers, its application to transformer designs, and their application in utility and industrial power systems. the author presents the principles of the two-winding transformer and its connection to polyphase systems, the origins of transfo

Transformers The Movie Guide

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Author by : Simon Furman
Languange Used : English, France, Spanish, Italia and chinese
Page : 69
Isbn : 9780756630133
Identifier : 0756630134
Release : 2007
Publisher by : DK Publishing (Dorling Kindersley)
Category : Juvenile Nonfiction
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Description : Read Now Transformers by Simon Furman and you can download with pub, pdf, txt, doc, and more file format with free account. a guide to the motion picture looks at the characters, their personalities, roles, and what they can change into.

Transformers and Motors

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Author by : George Shultz
Languange Used : English, France, Spanish, Italia and chinese
Page : 336
Isbn : 008051958X
Identifier : 9780080519586
Release : 2012-12-02
Publisher by : Elsevier
Category : Technology & Engineering
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Description : Read Now Transformers And Motors by George Shultz and you can download with pub, pdf, txt, doc, and more file format with free account. transformers and motors is an in-depth technical reference which was originally written for the national joint apprenticeship training committee to train apprentice and journeymen electricians. this book provides detailed information for equipment installation and covers equipment maintenance and repair. the book also includes troubleshooting and replacement guidelines, and it contains a minimum of theory and math. in this easy-to-understand, practical sourcebook, you'll discover: * explanations of the fundamental concepts of transformers and motors * transformer connections and distribution systems * installation information for transformers and motors * preventive maintenance, troubleshooting, and repair tips and techniques * helpful illustrations, glossary, and appendices * end-of-chapter quizzes to test your progress and understanding in-depth source for installation, maintenance, troubleshooting, repairing and replacing transformers and motors reviewed by the national joint apprenticeship and training committee for the electrical industry designed to train apprentice and journeyman electricians

Magnetic Circuits and Transformers

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Author by : U.A.Bakshi
Languange Used : English, France, Spanish, Italia and chinese
Page : 328
Isbn : 9788184314458
Identifier : 8184314450
Release : 2008
Publisher by : Technical Publications
Category :
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Description : Read Now Magnetic Circuits And Transformers by U.A.Bakshi and you can download with pub, pdf, txt, doc, and more file format with free account. electromagnetism review of electromagnetism, magnetic field strength, magnetic force.magnetic circuits magnetomotive force, reluctance, laws of magnetic circuits, determination of ampere-turns for series and parallel magnetic circuits, magnetic leakage and fringing, hysteresis and eddy current losses. electromagnetic induction faraday s laws, lenz s law, statically and dynamically induced e.m.f., energy stored in magnetic field. transformers introduction, principle of working, construction of single phase transformer, e.m.f. equation, phasor diagram on no load, leakage reactance, transformer on load, equivalent circuit, voltage regulation, power and energy efficiency, open circuit and short circuit tests, equivalent circuit parameters estimation. effect of saturation on exciting current, in-rush current phenomenon.parallel operation of single phase transformer. autotransformer principle of operation, comparison with two winding transformers.three phase transformers different winding connections, voltage and current ratios, comparative features, effect of connections on exciting current, parallel operation. three winding transformer-equivalent circuit, off-load and on-load tap changing transformer, scott connections.

D.C. Machines and Transformers

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Author by : U.A.Bakshi
Languange Used : English, France, Spanish, Italia and chinese
Page : 528
Isbn : 9788184314564
Identifier : 8184314566
Release : 2008
Publisher by : Technical Publications
Category :
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Description : Read Now D C Machines And Transformers by U.A.Bakshi and you can download with pub, pdf, txt, doc, and more file format with free account. machinery fundamentals field energy and mechanical force - forces and torque - energy conversion via electric field - principles of electromechanical energy conversion - single and multiple excited systems - types of armature winding - generated voltage.dc generators constructional details - principle - emf equation - methods of excitation - self and separately excited generators - characteristics of series, shunt and compound generators - armature reaction and commutation - parallel operation - applications.dc motors principle of operation - back emf and torque equations - types of dc motors - circuit model - characteristics - starting methods - speed control methods - separation of no load losses - applications. transformers constructional details - types of windings - principle of operation - emf equation - transformation ratio - transformer on no-load - equivalent circuit - transformer on load - regulation - parallel operation - auto transformer - saving of copper - instrument transformers - three phase transformers - types of connections - scott connection. testing of dc machines and transformers losses and efficiency in dc machines and transformers - condition for maximum efficiency - testing of dc machines - brake test, swinburne s test, retardation test and hopkinson s test - testing of transformers - polarity test, load test, - phasing out test - sumpner s test - separation of losses - all day efficiency.

Condition Monitoring and Assessment of Power Transformers Using Computational Intelligence

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Author by : W.H. Tang
Languange Used : English, France, Spanish, Italia and chinese
Page : 202
Isbn : 9780857290526
Identifier : 0857290525
Release : 2011-01-19
Publisher by : Springer Science & Business Media
Category : Technology & Engineering
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Description : Read Now Condition Monitoring And Assessment Of Power Transformers Using Computational Intelligence by W.H. Tang and you can download with pub, pdf, txt, doc, and more file format with free account. in recent years, rapid changes and improvements have been witnessed in the field of transformer condition monitoring and assessment, especially with the advances in computational intelligence techniques. condition monitoring and assessment of power transformers using computational intelligence applies a broad range of computational intelligence techniques to deal with practical transformer operation problems. the approaches introduced are presented in a concise and flowing manner, tackling complex transformer modelling problems and uncertainties occurring in transformer fault diagnosis. condition monitoring and assessment of power transformers using computational intelligence covers both the fundamental theories and the most up-to-date research in this rapidly changing field. many examples have been included that use real-world measurements and realistic operating scenarios of power transformers to fully illustrate the use of computational intelligence techniques for a variety of transformer modelling and fault diagnosis problems. condition monitoring and assessment of power transformers using computational intelligence is a useful book for professional engineers and postgraduate students. it also provides a firm foundation for advanced undergraduate students in power engineering.

Electric Power Transformer Engineering

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Author by : James H. Harlow
Languange Used : English, France, Spanish, Italia and chinese
Page : 560
Isbn : 9781420008715
Identifier : 1420008714
Release : 2007-05-30
Publisher by : CRC Press
Category : Science
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Description : Read Now Electric Power Transformer Engineering by James H. Harlow and you can download with pub, pdf, txt, doc, and more file format with free account. combining select chapters from grigsby's standard-setting the electric power engineering handbook with several chapters not found in the original work, electric power transformer engineering became widely popular for its comprehensive, tutorial-style treatment of the theory, design, analysis, operation, and protection of power transformers. for its

Since the Time of the Transformers The Ancient Heritage of the Nuu-Chah-Nulth, Ditidaht, and Makah

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Author by : Alan D. McMillan
Languange Used : English, France, Spanish, Italia and chinese
Page : 264
Isbn : 9780774807012
Identifier : 0774807016
Release : 2000
Publisher by : UBC Press
Category : History
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Description : Read Now Since The Time Of The Transformers by Alan D. McMillan and you can download with pub, pdf, txt, doc, and more file format with free account. this book examines over 4000 years of culture history of the related nuu-chah-nulth, ditidaht, and makah peoples on western vancouver island and the olympic peninsula. using data from the toquaht archaeological project, mcmillan challenges current ethnographic interpretations that show little or no change in these peoples' culture. instead, by combining historical evidence, recent archaeological data, and oral traditions he demonstrates conclusively that there were in fact extensive cultural changes and restructuring in these societies in the century following contact with europeans.

Transformers and Philosophy More than Meets the Mind

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Author by : John R. Shook
Languange Used : English, France, Spanish, Italia and chinese
Page : 384
Isbn : 0812698142
Identifier : 9780812698145
Release : 2012-03-30
Publisher by : Open Court
Category : Philosophy
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Description : Read Now Transformers And Philosophy by John R. Shook and you can download with pub, pdf, txt, doc, and more file format with free account. transformers began with toys and a cartoon series in 1984 and has since grown to include comic books, movies, and video games — its science fiction story has reached an audience with a wide range second only to that of star wars. here, in transformers and philosophy, a dream team of philosophers pursues the fascinating questions posed by humankind’s encounter with an artificially intelligent mechanical civilization: is genuine artificial intelligence possible? would a robotic civilization come with its own morality and artistic life, and would it find a need for romantic love? should we be more careful about developing robots that may eventually develop ideas of their own? transformers and philosophy puts transformers under a microscope and exposes its philosophical implications in an instantly readable way.