More From Chris Werstiuk

THE RELAY TESTING HANDBOOK #1: Electrical Fundamentals for Relay Testing By Chris Werstiuk
Paperback: $23.95
Ships in 3-5 business days
As modern protective relays become increasingly more powerful and complex, many relay testers continue to use test procedures and philosophies that are based on previous generations of relays and... More > their limitations. Modern relays have very different characteristics that require a different testing philosophy to ensure that they will operate when required. As the first of The Relay Testing Handbook series, Electrical Fundamentals for Relay Testing contains the underlying electrical theory that all relay testers should understand. This information provides a foundation that all other handbooks in the series use when describing the most common protective elements, how they function, and the most effective and efficient procedures used to test them. Even experienced relay testers can benefit from having this manual on hand as a quick reference when facing an unfamiliar relay testing situation. Go to http://relaytraining.com/ for more information< Less
The Relay Testing Handbook: Principles and Practice By Chris Werstiuk
Hardcover: $159.95
Ships in 6-8 business days.
This hardback book includes most of the volumes in the The Relay Testing Handbook series and includes: Electrical fundamentals; Relay testing fundamentals; How to translate digital logic used by... More > relay manufacturers into familiar concepts; and Best practices for creating and implementing test plans. Entire chapters are dedicated to the most commonly used protective elements including: Overvoltage, undervoltage, and frequency (59/27/81); Time, instantaneous, and directional overcurrent (51/50/67); Simple and transformer differential (87) testing with three or six current channels; and Line distance (21) testing using realistic test plans to minimize setting changes. Each protective element chapter includes: A description of operation written for a relay tester, not for a design engineer; Step-by-step test techniques that maximize your effectiveness and efficiency; Realistic examples from various relay manufacturers and models. Go to http://relaytraining.com/ for more information.< Less
THE RELAY TESTING HANDBOOK #3: Understanding Digital Logic By Chris Werstiuk
Paperback: $23.95
Ships in 3-5 business days
The Relay Testing Handbook: Understanding Digital Logic explains the different forms of relay logic used in modern microprocessor based relays. Each type of relay logic is described in detail with... More > practical examples to demonstrate how relay manufacturers use common relay logic principles applied with different style interfaces such as: Individual element schemes (GE SR and Beckwith relays); Binary relays (Alstom and Siemens relays); Arithmetic (math) schemes (Schweitzer Engineering Laboratories relays); Logic schemes (General Electric UR relays). Use the practical examples outlined in this volume to help you: Understand and use logic gates such as AND, OR, NOT, NOR, NAND, and more; Use logic comparators and timers; Convert relay settings from one logic format to another; Convert logic schemes into DC schematics to help understand and commission logic systems; Understand the protective relay logic used in nearly every in-service relay today Get more information at http://relaytraining.com/< Less
The Relay Testing Handbook #6: Testing Overcurrent Protection (50/51/67) By Chris Werstiuk
Paperback: $23.95
Ships in 3-5 business days
Modern relays have very different characteristics that require a different testing philosophy to ensure that they will operate when required. This volume provides step-by-step procedures for testing... More > the most common overcurrent protection applications. This volume is designed to help you understand and test: Instantaneous overcurrent protection (50); Inverse time overcurrent protection (51); Directional overcurrent protection (67). Each chapter explains the following topics for each element with realistic, practical examples and detailed instructions: Understanding the application; Determining which settings are most important; Recommended steps to correctly plan, perform, and evaluate pickup tests; Recommended steps to correctly plan, perform, and evaluate timing tests; Preventing interference from other settings inside the relay; Tips and tricks to overcome common obstacles. Go to http://relaytraining.com/ for more information.< Less