Relay Manufactures

Manufacture Manuals
SEL website - relay manuals and applications guides

SEL - Fundamentals and Improvements for Directional Relays

GE Relay Manuals

ABB CO-8 Relay ,KD-10 and 11 Distance Relays

Siemens Relays

Schneider Relays

General Relaying Docs and Presentations
Protective Relaying: Principles and Applications Third Ed

Lecture from U of SC on Transmission Line Protection

Lecture from U of SC on Distribution Protection

Manufacture
SEL High Impedance - Low Impedance Bus Relays

GE Bus Differential Relays

Siemens Bus Differential Relays

ABB Bus Differential Relays

Schneider Bus Differential Relays - All Schneider products are simple and cheap.

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Literature
SEL Applying the SEL-587Z in Switchgear - short runs from the CTs to the relays like in switchgear can cause issues if you don't set the pickup high impedance bus differential voltage properly

Bus Protection Considerations for Various Bus Types

Considerations for Using High-Impedance or Low Impedance Relays for Bus Differential Protection - David Costello and Stanley Zocholl (RIP)

SEL Secure Application of Transformer Differential relays for Bus Protection

Manufacture
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Literature
PRSC CT Saturation Excel Calculator

CT modeling from University of Idaho example

CT Saturation and Sizing Calcs from University of Idaho

Specifying CTs from Schneider

SEL Current Transformer Concepts by Stanley Zocholl and D.W. Smaha

SEL Determine Current Transformer Suitability Using EMTP Models

Manufacture
SEL Transmission Relays - all have distance relaying

ABB Line Distance Relays

Siemens Distance Relays and Distance/Differential Relays

Schneider Distance Relays

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Literature
Distance Relays and Capacitive Voltage Transformers-Balancing Speed and Transient Overreach

Distance Relay Element Design by E.O. Schweitzer III, and Jeff Roberts

SEL Relay for Generator Protection

Multilin Relays for Generator Protection

Siemen Relays for Generator and Motor Protection

Schneider Relays for Generator Protection - very simple relays in comparison to the above

ABB Relays for generator protection - very simple relays

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Manufacture
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Literature
SEL Review of Ground Fault Protection for Grounded, Ungrounded, and Compensated Distribution Systems

Line Differential Protection
Manufacture

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Lockout Relays
Electroswitch - Utility switches and relays catalogue

Manufacture
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Manufacture
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Test Switches
ABB FT-1 Configuring Tool

Manufacture
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Literature
SEL Transformer Modeling as Applied to Differential Protection

SEL Fundamentals of Short Circuit Protection for Transformers

SEL Improvements in Transformer Protection and Control