Ebooks

             

              It’s amazing to think that AutoCAD came into being more than a quarter of a century ago, at a time when most people thought that personal computersweren’t capable of industrial-strength tasks like CAD. (The acronym stands for Computer-Aided Drafting, Computer-Aided Design, or both, depending on whom you talk to.) What’s equally amazing to the grizzled old-timer writing these words is the fact that many of today’s hotshot AutoCAD users weren’t even born when the program first hit the street! It’s almost as amazing that, 25 years and countingafter its birth, AutoCAD remains the king of the microcomputer CAD hill by a tall margin, making it one of the longest-lived PC programs ever. It’s conceivable that the long-term future of CAD may belong to special-purpose, 3D-based software such as the Autodesk Inventor and Revit programs, but for the present and the near future anyway, AutoCAD is where the CAD action is.

       

            Electrical power systems are one of the most complex large scale systems.Over the past decades, with deregulation and increasing demand in many countries, power systems have been operated in a stressed condition and subject to higher risks of instability and more uncertainties. System operators are responsible for secure system operations in order to supply electricity to consumers efficiently and reliably. Consequently, power system analysis tasks have become increasingly challenging and require more advanced techniques.This book provides an overview of some the key emerging techniques for power system analysis. It also sheds lights on the next generation technology innovations given the rapid changes occurring in the power industry,especially with the recent initiatives toward a smart grid.

                 
       
             The power industry, a capital and technology intensive industry, is a basic national infrastructure. Its security, reliability, and economy have enormous and far-reaching effects on a national economy. An electrical power system is a typical large-scale system. Questions such as how to reflect accurately the characteristics of modern electrical power systems, how to analyze effectively their operating features, and how to improve further the operating performance are always at the forefront of electrical power systems research.

         

                 Power System analysis is a pre-requisite course for electrical power engineering students.
                 In Chapter I. introductory concepts about a Power system, network models, faults and
analysis;the primitive network and stability are presented.
                     Chapter 2 deals with the graph theory that is relevant to various incidence matrices required for network modelling are explained.
                     Chapter 3 explains the various incidence matrices and network matrices.
                     Chapter 4 discusses, step-by-step method of building of network matrices.
                     Chapter 5 deals with power flow studies. Both Gauss-Seidel method and Newton-Raphson methods are explained. In Newton-Raphson method both the Cartesion coordinates method
and polar coordinates methods are discussed.
                     Chapter 6 short circuit analysis is explained Per unit quantity and percentage values are
defined. Analysis for symmetrical faults is discussed. The utility of reactors for bus bar and
generator protection is also explained.Unbalanced fault analysis is presented in chapter 7. Use of symmetrical components and network connections are explained. Chapter 8 deals with the power system stability problem. Steady state stability. transient stability and dynamic stability are discussed.
It is earnestly hoped that this book will meet the requirements of students in the subject power system analysis. 

         

        An electrical power system can be considered to consist of a p\generation system , a transmission system. In general , the generation and transmission system are referred to as bulk power supply and the sub transmission and distribution system are considered to be the final means to transfer the electric power to the ultimate customer.   

     

         The objective of the book is to present methods of power system analysis and design,particularly with the aid of a personal computer , insufficient depth to give the student the basic theory at the undergraduate level the approach is designed to develop student's thinking process . enabling them to reach a sound understanding of abroad range of topics related to power system engineering while motivating their interest in the electrical power industry.  

       the Engineering services manual deals with all contractor's services. the electrical system planner determines his costs. following the prescribed cost groups. engineering services can be described either in the form of a directory of services (scope book) or in the form of a system description .the individual items include details by number of times applicable. meter or lump sums        

      Welcome to the Learning AutoCAD 2010 and AutoCAD LT 2010 Autodesk Official Training Guide, a training guide for use in Authorized Training Center (ATC®) locations, corporate training settings, and other classroom settings.
            Although this guide is designed for instructor-led courses, you can also use it for self-paced learning. The guide encourages self-learning through the use of the AutoCAD® or AutoCAD LT® Help system.

           Welcome to the Learning AutoCAD 2010 and AutoCAD LT 2010 Autodesk Official Training Guide, a training guide for use in Authorized Training Center (ATC®) locations, corporate training settings, and other classroom settings.
            Although this guide is designed for instructor-led courses, you can also use it for self-paced learning. The guide encourages self-learning through the use of the AutoCAD® or AutoCAD LT® Help system.