More From Chris Werstiuk

THE RELAY TESTING HANDBOOK #4: Creating and Implementing Test Plans By Chris Werstiuk
Paperback: $23.95
Ships in 3-5 business days
The Relay Testing Handbook: Creating and Implementing Test Plans outlines step-by-step procedures that will enable you to create and implement protective relay test plans for modern relay systems,... More > ensuring accurate and efficient relay testing for nearly every application. Use the practical steps outlined in this volume to help you: Collect and compare drawings, settings, and engineering studies to evaluate the application; Compare all of the available documentation to the manufacturer’s literature; Prepare to test the relay by correctly isolating it from the rest of the system; Establish communication with the relay and apply the settings; Properly connect your test-set to the relay; Perform acceptance tests; Design your test plan using conventional test techniques, or implement more efficient and effective ones, Implement your test plan or apply common test plans for feeder, generator, or line protection, Prepare your report and test sheets Get more information at http://valenceonline.com.< Less
The Relay Testing Handbook #9: Testing Line Distance Protection (21) By Chris Werstiuk
Paperback: $33.95
Ships in 3-5 business days
The Relay Testing Handbook: Testing Line Distance Protection (21) provides step-by-step procedures for testing the most common line distance (impedance) protection applications. This volume is... More > designed to help you: Understand the basic characteristics of line distance protection (21); Develop effective and efficient testing procedures that minimize setting changes. The following topics are described with realistic, practical examples and detailed instructions: Analyzing impedance diagrams; Understanding zones and how they are applied; Determining which settings are most important; Preventing interference from other settings inside the relay; Performing MTA, reach, and timing tests ; Recommended steps to correctly calculate and test the three-phase characteristic; Recommended steps to correctly calculate and test the phase-phase characteristic; Understanding K-Factor; Recommended steps to correctly calculate and test the phase-ground characteristic. Go to http://valenceonline.com for more info.< 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://valenceonline.com/ for more information.< Less
The Relay Testing Handbook #8: Testing Differential Protection (87) By Chris Werstiuk
Paperback: $33.95
Ships in 3-5 business days
The Relay Testing Handbook: Testing Differential Protection (87) provides step-by-step procedures for testing the most common differential protection applications. This volume is designed to help... More > you: Understand the basic characteristics of differential protection; Develop effective and efficient testing procedures that minimize setting changes. The following topics are described with realistic, practical examples and detailed instructions: Understanding simple differential protection for motors and generators; Defining minimum pickup and slope; Determining which settings are most important; Understanding transformer differential protection; Determining correct phase shifts through transformers; Recommended steps to correctly calculate and test differential protection using six channels; Recommended steps to correctly calculate and test differential protection using three channels; Testing harmonic restraint; Tips and tricks to overcome common obstacles. Go to http://valenceonline.com for more info.< Less