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Author: Piotr Olszowiec
Publisher: Springer Science & Business Media
ISBN: 3642297552
Category : Technology & Engineering
Languages : en
Pages : 194
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Book Description
Low voltage unearthed (IT) AC and DC systems are commonly applied for supply of power and control circuits in industry, transportation, medical objects etc. The main reasons for their use are high reliability and numerous advantages offered by isolating them against ground. Insulation level is a decisive factor for networks operational reliability and safety. Insufficient insulation-to-ground resistance can cause various disturbances. Though ground faults in IT systems do not make networks operation impossible, they may cause severe problems with their safe functioning. In this book the most important issues concerning normal operation and ground fault phenomena are described in concise form. Numerous methods of insulation resistance and capacitance measurement in live circuits are presented. Important other procedures of these parameters determination based on measurement and calculation are explained and reviews of selected insulation resistance measurement devices as well as earth fault locating systems are included. For the text understanding merely basic knowledge of electrical circuits theory is required. This book is addressed to electrical engineers, technicians and students of this specialty and may also serve as an academic handbook.
Author: Piotr Olszowiec
Publisher: Springer Science & Business Media
ISBN: 3642297552
Category : Technology & Engineering
Languages : en
Pages : 194
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Book Description
Low voltage unearthed (IT) AC and DC systems are commonly applied for supply of power and control circuits in industry, transportation, medical objects etc. The main reasons for their use are high reliability and numerous advantages offered by isolating them against ground. Insulation level is a decisive factor for networks operational reliability and safety. Insufficient insulation-to-ground resistance can cause various disturbances. Though ground faults in IT systems do not make networks operation impossible, they may cause severe problems with their safe functioning. In this book the most important issues concerning normal operation and ground fault phenomena are described in concise form. Numerous methods of insulation resistance and capacitance measurement in live circuits are presented. Important other procedures of these parameters determination based on measurement and calculation are explained and reviews of selected insulation resistance measurement devices as well as earth fault locating systems are included. For the text understanding merely basic knowledge of electrical circuits theory is required. This book is addressed to electrical engineers, technicians and students of this specialty and may also serve as an academic handbook.
Author: Narain G. Hingorani
Publisher: Wiley-IEEE Press
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 460
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Book Description
The Flexible AC Transmission System (FACTS)--a new technology based on power electronics--offers an opportunity to enhance controllability, stability, and power transfer capability of ac transmission systems. Two pioneers in the field provide in-depth discussions on power semiconductor devices, voltage-sourced and current-sourced converters, specific FACTS controllers, and major FACTS applications in the U.S.
Author: National Fire Protection Association
Publisher: Cengage Learning
ISBN: 9780877659167
Category : House & Home
Languages : en
Pages : 0
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Book Description
The "National Electrical Code 2011 Handbook" provides the full text of the updated code regulations alongside expert commentary from code specialists, offering code rationale, clarifications for new and updated rules, and practical, real-world advice on how to apply the code.
Author: Augusto de la Torre
Publisher: World Bank Publications
ISBN: 0821365444
Category : Business & Economics
Languages : en
Pages : 232
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Book Description
Back in the early 1990s, economists and policy makers had high expectations about the prospects for domestic capital market development in emerging economies, particularly in Latin America. Unfortunately, they are now faced with disheartening results. Stock and bond markets remain illiquid and segmented. Debt is concentrated at the short end of the maturity spectrum and denominated in foreign currency, exposing countries to maturity and currency risk. Capital markets in Latin America look particularly underdeveloped when considering the many efforts undertaken to improve the macroeconomic environment and to reform the institutions believed to foster capital market development. The disappointing performance has made conventional policy recommendations questionable, at best. 'Emerging Capital Markets and Globalization' analyzes where we stand and where we are heading on capital market development. First, it takes stock of the state and evolution of Latin American capital markets and related reforms over time and relative to other countries. Second, it analyzes the factors related to the development of capital markets, with particular interest on measuring the impact of reforms. And third, in light of this analysis, it discusses the prospects for capital market development in Latin America and emerging economies and the implications for the reform agenda.
Author: Keith Harker
Publisher: IET
ISBN: 9780852969090
Category : Technology & Engineering
Languages : en
Pages : 524
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Book Description
This unique book covers the practical issues associated with commissioning and supporting plant which commonly face engineers, enabling readers to rapidly become familiar with basic theory and design of equipment prior to considering commissioning or related work.
Author: Institution of Engineering and Technology
Publisher:
ISBN: 9781849198776
Category : Electric circuits
Languages : en
Pages : 0
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Book Description
Protection Against Electric Shock is a core element of safety for specifiers, designers, contractors and inspectors. Important changes affecting Guidance Note 5 include but are not limited to changes to earth fault loop impedances for all protective devices. Make sure you are up to date with the changes and working to new standards in safety. Amendment 3 published on 5 January 2015 and comes into effect on 1 July 2015. All new installations from this point must comply with Amendment 3 to BS 7671:2008.
Author: Institution of Electrical Engineers
Publisher:
ISBN:
Category : Electrical engineering
Languages : en
Pages : 688
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Book Description
Author: Siddhartha Mukherjee
Publisher: Simon and Schuster
ISBN: 1439170916
Category : Health & Fitness
Languages : en
Pages : 624
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Book Description
Winner of the Pulitzer Prize and a documentary from Ken Burns on PBS, this New York Times bestseller is “an extraordinary achievement” (The New Yorker)—a magnificent, profoundly humane “biography” of cancer—from its first documented appearances thousands of years ago through the epic battles in the twentieth century to cure, control, and conquer it to a radical new understanding of its essence. Physician, researcher, and award-winning science writer, Siddhartha Mukherjee examines cancer with a cellular biologist’s precision, a historian’s perspective, and a biographer’s passion. The result is an astonishingly lucid and eloquent chronicle of a disease humans have lived with—and perished from—for more than five thousand years. The story of cancer is a story of human ingenuity, resilience, and perseverance, but also of hubris, paternalism, and misperception. Mukherjee recounts centuries of discoveries, setbacks, victories, and deaths, told through the eyes of his predecessors and peers, training their wits against an infinitely resourceful adversary that, just three decades ago, was thought to be easily vanquished in an all-out “war against cancer.” The book reads like a literary thriller with cancer as the protagonist. Riveting, urgent, and surprising, The Emperor of All Maladies provides a fascinating glimpse into the future of cancer treatments. It is an illuminating book that provides hope and clarity to those seeking to demystify cancer.
Author: Adam B. Cox
Publisher: Oxford University Press
ISBN: 0190694386
Category : Law
Languages : en
Pages : 361
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Book Description
Who controls American immigration policy? The biggest immigration controversies of the last decade have all involved policies produced by the President policies such as President Obama's decision to protect Dreamers from deportation and President Trump's proclamation banning immigrants from several majority-Muslim nations. While critics of these policies have been separated by a vast ideological chasm, their broadsides have embodied the same widely shared belief: that Congress, not the President, ought to dictate who may come to the United States and who will be forced to leave. This belief is a myth. In The President and Immigration Law, Adam B. Cox and Cristina M. Rodríguez chronicle the untold story of how, over the course of two centuries, the President became our immigration policymaker-in-chief. Diving deep into the history of American immigration policy from founding-era disputes over deporting sympathizers with France to contemporary debates about asylum-seekers at the Southern border they show how migration crises, real or imagined, have empowered presidents. Far more importantly, they also uncover how the Executive's ordinary power to decide when to enforce the law, and against whom, has become an extraordinarily powerful vehicle for making immigration policy. This pathbreaking account helps us understand how the United States ?has come to run an enormous shadow immigration system-one in which nearly half of all noncitizens in the country are living in violation of the law. It also provides a blueprint for reform, one that accepts rather than laments the role the President plays in shaping the national community, while also outlining strategies to curb the abuse of law enforcement authority in immigration and beyond.
Author:
Publisher:
ISBN: 9780717666362
Category : Electricity
Languages : en
Pages : 52
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Book Description
