Altri libri che potrebbero interessarti

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  Introduction to Power System...

  Dr. Hidaia Mahmood Alassouli

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  Power system protection systems have three basic components: Instrument transformers, Relays, Circuit breakers
  
  The function of the CT is to reproduce in its secondary winding a current I' that is proportional to the primary current I. The CT converts primary currents in the kiloamp range to secondary currents in the 0–5 ampere range for convenience of measurement.
  
  The function of the relay is to discriminate between normal operation and fault conditions. The OC relay in Figure 2 has an operating coil, which is connected to the CT secondary winding, and a set of contacts. When |I'| exceeds a specified ''pickup'' value, the operating coil causes the normally open contacts to close. When the relay contacts close, the trip coil of the circuit breaker is energized, which then causes the circuit breaker to open.
  
  System-protection components have the following design criteria:
  • Reliability: Operate dependably when fault conditions occur, even after remaining idle for months or years. Failure to do so may result in costly damages.
  • Selectivity: Avoid unnecessary, false trips.
  • Speed: Operate rapidly to minimize fault duration and equipment damage. Any intentional time delays should be precise.
  • Economy: Provide maximum protection at minimum cost.
  • Simplicity: Minimize protection equipment and circuitry.
  
  Since it is impossible to satisfy all these criteria simultaneously, compromises must be made in system protection.
  
  The book consists from the following sections:
  1. Chapter 1: Power System Faults:
  2. Chapter 2: Instrument Transformers.
  3. Chapter 3: Overcurrent and Earth Fault Protection Relays.
  4. Chapter 4: Radial System Protection.
  5. Chapter 5: Zones of Protection.
  6. Chapter 6: Differential Relays.
  7. Chapter 7: Distance Relays.
  8. Chapter 8: Transformer Protection.
  9. Chapter 9: Generator Protection.
  10. Chapter 10: Busbar Protection.
  11. Chapter 11: Circuit Breakers.
  12. Chapter 12: Fuses.
  13. Chapter 13: References.

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  WORKBOOK of The Cold Start...

  BOOK TIGERS

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  Are you struggling to launch your startup in the competitive tech industry? Do you find yourself lost among giants like Apple, Google, and Microsoft? 
  Introducing "Workbook Of The Cold Start Problem: How To Start And Scale Network Effects By Andrew Chen," your guide to navigating the challenges of the technology ecosystem. Discover the secret weapon utilized by tech giants and startups alike: the network effect. 
   Learn how to harness the power of network effects to skyrocket your product's value and attract a flood of users. Dive deep into strategies for creating and building network effects into your products, from messaging apps to marketplaces. 
  Don't let stiff competition and ineffective marketing channels hold you back. Grab your copy of "Workbook Of The Cold Start Problem" and unlock the keys to success in the tech industry today!

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  Be Fruitful and Multiply - How...

  Donald Worster

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  A groundbreaking history that explores how human desires have affected our relationship with the natural world, and why this is a cause for hope Donald Worster looks back over 200,000 years of Homo sapiens to show how human nature, especially the drive for food and sex, has responded to environmental conditions throughout history. Examining how this process led from foraging to the agrarian revolution and then to a capitalist way of life, Worster brings us face to face with a third transformation of human society that is beginning to take shape in China: an ecological civilization. This meticulously researched book explores how human desires have driven us to overrun our environments, and how we have adapted by creating new relationships with the earth. Tying the past to the future and humans to the planet, Worster acknowledges that we are at a potentially dangerous tipping point. Yet he offers a surprisingly optimistic vision, full of faith in the strength of our human desires, to help us develop exciting futures in a changing world—as we have done time and again—and achieve a good life for the billions of us trying to survive on a finite planet.

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  End of Abundance in Tech - How...

  Ben DeBow

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  How healthy is your technology environment?Your CDO,CIO,CTO, and CFO may each have a different answer.The truth is no one knows for sure how healthy their technology environment is today or how much it will be able to support tomorrow.As CEO of Fortified, a next-generation database consultancy focused on planning and designing data systems for performance and scalability, Ben DeBow has seen time and again how much money enterprises are wasting on excess capacity and inefficient code–to the detriment of the environment as well as their balance sheets.This book presents a blueprint for evaluating and scoring system health now, with an eye toward creating real business value over the next five-10 years. Only then, will IT claim its rightful seat at the table as a true partner in enterprise growth.

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  Alone in Wonderland

  Christine Reed

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  Winner of the Indie National Excellence Award for Nonfiction Category. 
   
   
   
  Christine discovered long distance backpacking while surfing the internet at work. She decided that day to attempt to thru-hike the Appalachian Trail. One adventure led to another and a few years later she set out on the Wonderland Trail in Mt Rainier National Park. 
   
   
   
  Her Rugged Outdoors Woman persona started as a joke, a nod to the outdoor adventurer that she wished to be. But in the years since, she has come into her own as a backpacker, rock climber, and trail runner. This book is a testament to the decision to name who you want to be and make it so.

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  Create Irresistible Products...

  Ronan Ashford

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  "Create Irresistible Products That Keep Users Engaged" 
  Are you striving to advance in your field and reinforce your knowledge by mastering the art of creating compelling products? 
  Looking for a complete guide that covers all essential aspects of building products that captivate and retain users? 
  Look no further! 
  This audiobook is your ultimate companion for enhancing your understanding, applying your skills, and participating in practical exercises. With this resource, you're set for success. 
  Updated for the latest trends and techniques in product design and user retention. 
  Key features of this comprehensive guide: 
  - In-depth insights into crafting sustainable engagement through outstanding product experiences 
  - Detailed explanation of strategies to foster continual user interaction and interest 
  - Effective approaches to product development and implementation 
  Our guide stands out with its all-encompassing coverage, which is crucial for achieving excellence in product creation. Concepts are thoroughly explored and precisely explained. 
  Please note that this guide is an independent resource, intended solely for your benefit. 
  Crafted with a clear structure and accessible language, our guide to "Unlock Lasting Engagement Through Exceptional Product Experiences" ensures seamless transitions between topics. Say goodbye to convoluted jargon and embrace clear, concise, and technically accurate content. 
  So, why wait? Click the BUY NOW button, secure your guide, and start your journey to unlocking lasting user engagement and creating products that keep users coming back!

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