Below are some reference materials from the IEEE Power & Energy Society which may be useful in some ways on your projects. IEEE Power System Relaying Tutorials Title Size Considerations for Use of Disturbance Recorders 371kB (pdf) Protective Relaying and Power Quality 1.70MB (zip) Wide Area Protection and Emergency Control 1.82MB (zip) Relay Engineering in Power Engineering Curricula 110kB (zip) Cybersecurity Issues for Protective Relaying 502kB (pdf) Performance of Relaying during Wide-Area Stressed Conditions 1.01MB (pdf) Impact of Distributed Resources on Distribution Line Protection 398.63kB (pdf) Loss of ac Voltage Considerations for Line Protection 325kB (pdf) Power Swing and Out-of-Step Considerations on Transmission Lines 661kB (pdf) Results of the 2002 Distribution Protection Survey 33.6kB (zip) Transmission Line Relay Loadability 130kB (zip) EMTP Reference Models for Transmission Line Relay Testing 619kB (zip) Justifying Pilot Protection on Transmission Lines 534kB (doc) Summary of C37.230-2007, IEEE Guide for Protective Relay Applications to Distribution Lines 107kB (pdf) Cold Load Pickup Issues 248kB (pdf) Application Considerations of IEC 61850/UCA 2 for Substation Ethernet Local Area Network Communication for Protection and Control 1.50MB (pdf) Application of Peer-to-Peer Communication for Protective Relaying 53kB (zip) Digital Communications for Relay Protection 297kB (zip) File Naming Convention for Time Sequence Data 43.5kB (doc) IEEE C37.115-2003 Standard Test Method for Use in Evaluation of Message Communications between Intelligent Electronic Devices in an Integrated Substation Protection, Control, and Data Acquisition System 113kB (zip) Special Considerations in Applying Power Line Carrier for Protective Relaying 351kB (zip) Using Spread Spectrum Radio Communication for Power System Protection Relaying Applications 867.39kB (pdf) CT Saturation Theory and Calculator 934kB (zip) Intertie Protection of Consumer-Owned Generation 68.6kB (zip) Manufacturer's Service Letter Database NA Relay System Performance Measuring 16.3kB (zip) Summary Paper on C37.90.1-2002 16.1kB (zip) 2001 Survey of Relaying Test Practices 140kB (pdf) Transmission Relay Systems Performance Comparison 805kB (zip) Transmission Relay Systems Performance Comparison 781kB (zip) Understanding Microprocessor-Based Technology Applied to Relaying 854.69kB (pdf) Overview on C57.13.3, "IEEE Guide for the Grounding of Instrument Transformer Secondary Circuits and Cases" NA Event Reconstruction Using Data from Protection and Disturbance Recording Intelligent Electronic Devices 101kB (pdf) Performance of Generator Protection During Major System Disturbances 279kB (pdf) Breaker Failure Protection - Power Point presentation from the WPRC 130kB (PPT) Protection of Phase Angle Regulating Transformer 161kB (zip) Relay Trip Circuit Design 345kB (zip) Transformer Thermal Overload Protection 124kB (zip) Voltage Collapse Mitigation 140kB (pdf) Overview on C37.92, Standard for Low-Level Analog Interface between Electronic Sensors and Protective Relays 61.1kB (zip) Presentations - Chapters 1 to 4 1.01MB (zip) Presentations - Chapters 5 to 9 724kB (zip) Presentations - Chapters 10 to 13 614kB (zip) Presentation - Web Based Review of Papers - Sidhu 2.14MB (zip) Presentation - Rogowski Coils as presented to the working group "Application of Rogowski Coils for Protective Relaying Purposes" 1.07MB (zip)