Numerical Relays & Substation Automation

This course provides comprehensive knowledge of numerical relays used in modern electrical power system protection and substation automation. It covers the operating principles, architecture, functions, and applications of microprocessor-based numerical protection relays. Participants learn about protection schemes for generators, transformers, motors, transmission lines, feeders, and busbars. The course explains relay settings, protection coordination, fault detection, and tripping logic for reliable system operation. It introduces digital signal processing, measurement techniques, and algorithms used by numerical relays. Participants also gain an understanding of communication protocols and relay integration within substation automation systems. Practical concepts such as relay configuration, testing, commissioning, event analysis, and fault recording are discussed. The course highlights IEC 61850-based communication and the role of intelligent electronic devices (IEDs) in modern substations. It also addresses troubleshooting, maintenance, and performance evaluation of numerical protection systems. Overall, the course develops practical skills required to design, operate, maintain, and troubleshoot modern digital protection systems.