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 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... More > for more info.< Less
