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Bookstore


For more than 30 years, SEL has created an impressive selection of power systems literature, including several important textbooks.

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Modern Solutions for Protection, Control, and Monitoring of Electric Power Systems

Edited by Héctor J. Altuve Ferrer and Edmund O. Schweitzer, III

The most comprehensive work of its kind, this book consolidates into one volume new, modern solutions for protection, control, and monitoring of electric power systems.

You'll find straightforward presentations and example applications of the following technologies:

  • Time-synchronized protection, monitoring, and control
  • Wide-area protection and control using synchrophasors
  • Cybersecurity threats and security-in-depth tool kit
  • Distribution systems that deliver safe operation and rapid power restoration after faults
  • Transmission protection solutions that improve stability, detect power swings, and help you get the most out of your primary equipment
  • Much more!
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Line Current Differential Protection: A Collection of Technical Papers Representing Modern Solutions

Edited by Héctor J. Altuve Ferrer, Bogdan Kasztenny, and Normann Fischer

This book addresses the design and application of line current differential (87L) protection, communications, and fault locating, from both the protection and communications perspectives. The book is a collection of technical papers written by industry experts, including research and development engineers, field application engineers, and protection and communications practitioners from several electric utilities. The book is suitable for protection, control, communications, and power system engineers, as well as decision-making personnel at electric utilities and industries.

The papers are grouped in sections that cover the following topics:

  • Line Current Differential Protection Principles—introduces the reader to the 87L operation principles, design challenges, and solutions.
  • Communications and Time Sources—discusses communications and timing for 87L protection. Various 87L channels are reviewed and compared, and channel requirements, present current data alignment methods, and usage of external time sources in 87L schemes are discussed.
  • Applications—addresses common application considerations of 87L schemes.
  • Fault Locating in Line Current Differential Relays—reviews impedance-based and traveling-wave fault locating methods embedded in 87L relays.
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Analyzing and Applying Current Transformers

By Stanley Zocholl

Current transformers are used throughout the world as current transducers for protective relays in utility and industrial applications. Standard ratings and application guides deal with the steady-state sine wave behavior of current transformers. Despite the use of recommended rules applied to avoid transient saturation, it always occurs in certain critical relay applications. This book presents transformer concepts that provide the fundamentals to understand the nonlinear characteristics, accuracy ratings, and transient behavior of current transformers.

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AC Motor Protection

By Stanley Zocholl

AC motor protection presents a unique challenge to facility, maintenance, and protection engineers. Comprehensive motor protection requires knowledge of all the characteristics of the motor in operation. AC motors, induction or synchronous, require electrical, mechanical, and thermal models to determine the motor characteristics needed to provide optimized thermal and fault protection. Written for the practicing engineer, all of the steps necessary to develop this vital information are included in this concise book.

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