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Author: Nilesh Chothani Publisher: LAP Lambert Academic Publishing ISBN: 9783659895821 Category : Languages : en Pages : 128
Book Description
In all over the world, societal development and prompt growing industry have demanded huge per head consumption of Electric Energy. This situation urges the installation of large capacity power plant and transformers for sustainable transmission grid to cater to a large geographical area. This book presents the history, current, upcoming development and comprehensive review/analysis of different transformer protection schemes. Conventional protection schemes of power transformer may operate in anomalies such as Inrush condition, CT saturation during external fault and high resistance internal fault conditions. These deficiencies have been overcome by thorough research which is detailed in the book. Moreover, this book includes various new schemes, based on phasor comparison analysis with sequence component of current as a fault identification with a Wide variation in system parameters & fault conditions. Also based on sequence components, total harmonic distortion, various filtering techniques and derivative-based discrimination of inrush, over-excitation, and various CT saturation conditions are elaborated in detail. The book includes Machine Learning based signal classification.
Author: Nilesh Chothani Publisher: LAP Lambert Academic Publishing ISBN: 9783659895821 Category : Languages : en Pages : 128
Book Description
In all over the world, societal development and prompt growing industry have demanded huge per head consumption of Electric Energy. This situation urges the installation of large capacity power plant and transformers for sustainable transmission grid to cater to a large geographical area. This book presents the history, current, upcoming development and comprehensive review/analysis of different transformer protection schemes. Conventional protection schemes of power transformer may operate in anomalies such as Inrush condition, CT saturation during external fault and high resistance internal fault conditions. These deficiencies have been overcome by thorough research which is detailed in the book. Moreover, this book includes various new schemes, based on phasor comparison analysis with sequence component of current as a fault identification with a Wide variation in system parameters & fault conditions. Also based on sequence components, total harmonic distortion, various filtering techniques and derivative-based discrimination of inrush, over-excitation, and various CT saturation conditions are elaborated in detail. The book includes Machine Learning based signal classification.
Author: Dharmesh Patel Publisher: Springer Nature ISBN: 9811567638 Category : Technology & Engineering Languages : en Pages : 217
Book Description
This book provides a comprehensive overview of protection schemes used for power transformers and describes the internal fault conditions and external abnormalities that may disrupt the operation of a power transformer. It also highlights the issues of current protective schemes, which pose several challenges in terms of the detection of internal faults and abnormalities, including computational burden, reduced accuracy, difficulty to implement, increased cost, computational complexity, impermeability to high resistance faults (HRF), and malfunction in conditions like cross-country fault. To address these problems, the book develops an effective novel transformer protection scheme that can eliminate all the said difficulties using an innovative algorithm. Given its scope, it is a useful resource for researchers and practitioners working in the field of power system protection, allowing them to design novel protection schemes, and providing insights into the hardware validation of developed technique.
Author: Nilesh Chothani Publisher: Springer Nature ISBN: 9819938708 Category : Electric power systems Languages : en Pages : 331
Book Description
This book provides an overview of a power transformer infrastructure and comprehensive digital protection of it. It presents various protective methodologies available to protect the transformer from disturbances by taking care of mal-operation due to external disturbances and providing fine protection to the transformer. Though there are many protection methodologies available in the practice. However, these existing methodologies may mal-operate during external disturbances such as inrush, over-fluxing and short circuits. Hence, further research is needed in addition to the existing methods of protection in terms of more fault prediction accuracy, speedy operation, and lower protection cost with zero error in the detection of faults. The book will be useful reference for practitioners from academia and industrial applications. .
Author: L.P. Singh Publisher: New Age International ISBN: 9788122417326 Category : Electric power systems Languages : en Pages : 540
Book Description
This Book Is A Result Of Teaching Courses In The Areas Of Computer Methods In Power Systems, Digital Simulation Of Power Systems, Power System Dynamics And Advanced Protective Relaying To The Undergraduate And Graduate Students In Electrical Engineering At I.I.T., Kanpur For A Number Of Years And Guiding Several Ph.D. And M.Tech. Thesis And B.Tech. Projects By The Author. The Contents Of The Book Are Also Tested In Several Industrial And Qip Sponsored Courses Conducted By The Author As A Coordinator. The Present Edition Includes A Sub-Section On Solution Procedure To Include Transmission Losses Using Dynamic Programming In The Chapter On Economic Load Scheduling Of Power System. In This Edition An Additional Chapter On Load Forecasting Has Also Been Included. The Present Book Deals With Almost All The Aspects Of Modern Power System Analysis Such As Network Equations And Its Formulations, Graph Theory, Symmetries Inherent In Power System Components And Its Formulations, Graph Theory, Symmetries Inherent In Power System Components And Development Of Transformation Matrices Based Solely Upon Symmetries, Feasibility Analysis And Modeling Of Multi-Phase Systems, Power System Modeling Including Detailed Analysis Of Synchronous Machines, Induction Machines And Composite Loads, Sparsity Techniques, Economic Operation Of Power Systems Including Derivation Of Transmission Loss Equation From The Fundamental, Solution Of Algebraic And Differential Equations And Power System Studies Such As Load Flow, Fault Analysis And Transient Stability Studies Of A Large Scale Power System Including Modern And Related Topics Such As Advanced Protective Relaying, Digital Protection And Load Forecasting. The Book Contains Solved Examples In These Areas And Also Flow Diagrams Which Will Help On One Hand To Understand The Theory And On The Other Hand, It Will Help The Simulation Of Large Scale Power Systems On The Digital Computer. The Book Will Be Easy To Read And Understand And Will Be Useful To Both Undergraduate And Graduate Students In Electrical Engineering As Well As To The Engineers Working In Electricity Boards And Utilities Etc.
Author: J. C. Das Publisher: CRC Press ISBN: 1498745512 Category : Technology & Engineering Languages : en Pages : 702
Book Description
This book focuses on protective relaying, which is an indispensable part of electrical power systems. The recent advancements in protective relaying are being dictated by MMPRs (microprocessor-based multifunction relays). The text covers smart grids, integration of wind and solar generation, microgrids, and MMPRs as the driving aspects of innovations in protective relaying. Topics such as cybersecurity and instrument transformers are also explored. Many case studies and practical examples are included to emphasize real-world applications.
Author: John Ciufo Publisher: John Wiley & Sons ISBN: 1119847389 Category : Technology & Engineering Languages : en Pages : 564
Book Description
An all-in-one resource on power system protection fundamentals, practices, and applications Made up of an assembly of electrical components, power system protections are a critical piece of the electric power system. Despite its central importance to the safe operation of the power grid, the information available on the topic is limited in scope and detail. In Power System Protection: Fundamentals and Applications, a team of renowned engineers delivers an authoritative and robust overview of power system protection ideal for new and early-career engineers and technologists. The book offers device- and manufacturer-agnostic fundamentals using an accessible balance of theory and practical application. It offers a wealth of examples and easy-to-grasp illustrations to aid the reader in understanding and retaining the information provided within. In addition to providing a wealth of information on power system protection applications for generation, transmission, and distribution facilities, the book offers readers: A thorough introduction to power system protection, including why it's required and foundational definitions Comprehensive explorations of basic power system protection components, including instrument transformers, terminations, telecommunications, and more Practical discussions of basic types of protection relays and their operation, including overcurrent, differential, and distance relays In-depth examinations of breaker failure protection and automatic reclosing, including typical breaker failure tripping zones, logic paths, pedestal breakers, and more Perfect for system planning engineers, system operators, and power system equipment specifiers, Power System Protection: Fundamentals and Applications will also earn a place in the libraries of design and field engineers and technologists, as well as students and scholars of power-system protection.
Author: Publisher: ISBN: Category : Languages : en Pages :
Book Description
Algorithms for digital protection of power transformers (PT) against internal faults have been presented in this doctoral dissertation. The presented algorithms for protection against short circuits of PT windings and for protection against ground-faults are based on time domain digital phase comparison. The digital phase comparator does not calculate the phase displacement between the signals which are being compared, but calculates the integral of the product of two signals over one basic half-period of the signals. The possibility of applying the phase comparison of the primary and secondary currents aimed at detecting internal faults in PTs has been investigated. In normal operating regimes and during faults outside the protection zone, the primary and secondary currents are in phase, while in case of internal short-circuit faults a phase shift appears between these two currents. In this dissertation, it has been shown that the phase shift between the primary and secondary currents during internal short-circuits depends both on the percentage of the short circuited windings and the network parameters as well as operating regime prior to the fault. It is possible to detect internal short-circuit faults by utilizing the phase comparison of the primary and secondary currents. The algorithm has been expanded by adding a digital filter for the dc component due to the existence of a decreasing dc current component in the fault current; in addition to this, the algorithm has been extended by adding the digital Fourier filter due to the existence of higher harmonics. In this way, the algorithm performance has been enhanced. Next, the algorithm that uses a new approach to solve the problem of misoperation of the transformer differential protection due to faults outside the protected zone accompanied by current transformer (CT) saturation has been presented. The new approach is based on the phase comparison of the primary and secondary currents, and is used as indication
Author: Leonard L. Grigsby Publisher: CRC Press ISBN: 1439883203 Category : Technology & Engineering Languages : en Pages : 453
Book Description
With contributions from worldwide leaders in the field, Power System Stability and Control, Third Edition (part of the five-volume set, The Electric Power Engineering Handbook) updates coverage of recent developments and rapid technological growth in essential aspects of power systems. Edited by L.L. Grigsby, a respected and accomplished authority in power engineering, and section editors Miroslav Begovic, Prabha Kundur, and Bruce Wollenberg, this reference presents substantially new and revised content. Topics covered include: Power System Protection Power System Dynamics and Stability Power System Operation and Control This book provides a simplified overview of advances in international standards, practices, and technologies, such as small signal stability and power system oscillations, power system stability controls, and dynamic modeling of power systems. This resource will help readers achieve safe, economical, high-quality power delivery in a dynamic and demanding environment. With five new and 10 fully revised chapters, the book supplies a high level of detail and, more importantly, a tutorial style of writing and use of photographs and graphics to help the reader understand the material. New Chapters Cover: Systems Aspects of Large Blackouts Wide-Area Monitoring and Situational Awareness Assessment of Power System Stability and Dynamic Security Performance Wind Power Integration in Power Systems FACTS Devices A volume in the Electric Power Engineering Handbook, Third Edition. Other volumes in the set: K12642 Electric Power Generation, Transmission, and Distribution, Third Edition (ISBN: 9781439856284) K12648 Power Systems, Third Edition (ISBN: 9781439856338) K12650 Electric Power Substations Engineering, Third Edition (9781439856383) K12643 Electric Power Transformer Engineering, Third Edition (9781439856291)
Author: Lakneshwar Prakash Singh Publisher: New Age International ISBN: 9788122410532 Category : Digital electronics Languages : en Pages : 294
Book Description
The Present Edition Of The Book Contains Almost All The Topics Connected With Protection Schemes. The Book, Which Consists Of Ten Main Chapters And Two Appendices, Starts With The Chapter On Introduction, And Includes Chapters On Fundamental And Basic Theory Of Protection Schemes, Definition Of Various Terms, Different Types Of Protective Relaying Schemes, Generalized Mathematical Theory Of Protective Relay, Relay As A Comparator, Single Input, Dual Input And Multi- Input Comparator, Different Types And Arrangement Of Protection Schemes For Various Components And Detailed Studies Of Electromechanical, Electronics, Static And Digital Relaying Schemes. The Digital Protection Of Synchronous Machines, Transformer And Transmission Line Based, Both On Fundamental And Travelling Wave Phenomena, Are Dealt With In Detail. Also Included In The Present Edition, Are The Related Topics Such As Theory And Design Of Dynamic Test Bench, P.C. Based Relay Setting And Coordination, P.C. Based Short Circuit Studies And Ultra High Speed Relaying Schemes.The Present Edition Which Contains Almost All The Topics Of Current Interest In The Area Of Protective Relaying, Will Certainly Be Very Useful To The Teachers, Students And Engineers Working With The Utilities. The Present Edition Is The Result Of Teaching By The Author To The Undergraduate And Postgraduate Level Classes And Supervising Several Doctoral And Master Thesis And Graduate Level Projects In The Area Of Power System Protection At The Indian Institute Of Technology, Kanpur, For More Than Two Decades. The Content Of The Present Edition Has Been Class-Tested For Several Years At The Undergraduate And Postgraduate Level Classes At L.L.T., Kanpur. It Has Also Been Tested In Several Intensive Courses Offered By The Author Under Qip And Other Schemes To The Teachers Of Academic Institutions And Also Engineers Working With Utilities.
Author: Sam Stuart Publisher: Elsevier ISBN: 1483226085 Category : Technology & Engineering Languages : en Pages : 577
Book Description
The Relay Protection of High Voltage Networks presents the theoretical aspects of relay protection of high-voltage electrical networks. This book covers a variety of topics, including sequence networks for complex asymmetrical states, vector locus method, theories of symmetrical component filters, and power directional devices. Organized into 10 chapters, this book begins with an overview of the use of sequence networks. This text then examines the relay protection of high-voltage networks with three-phase and single-phase tripping. Other chapters consider the principles of auxiliary devices, which serve for the selection of the faulty phase and for preventing the incorrect operation of protective gear during swings and for faulty conditions in the secondary windings of voltage transformers. The final chapter deals with the stability of parallel working of power stations in a system. This book is a valuable resource for engineers, student, research workers, and readers specializing in the field of relay protection.
Author: Nilesh Chothani
Author: Nilesh Chothani
Author: Dharmesh Patel
Author: Nilesh Chothani
Author: L.P. Singh
Author: J. C. Das
Author: John Ciufo
Author: 
Author: Leonard L. Grigsby
Author: Lakneshwar Prakash Singh
Author: Sam Stuart