Substation Equipments Basics

This course provides a practical introduction to the fundamental equipment used in electrical substations and their role in power transmission and distribution systems. It explains the purpose, construction, working principles, and basic applications of major substation equipment. Participants will learn about power transformers, current transformers (CTs), potential transformers (PTs), circuit breakers, isolators, busbars, and lightning arresters. The course introduces different types of switchgear and their importance in safe and reliable power-system operation. It also covers protection and control equipment used for monitoring and isolating electrical faults. Basic concepts of earthing, batteries, chargers, and auxiliary systems are discussed from an operational perspective. Participants will understand the basic functions of relays, meters, and instrument transformers in substation protection and measurement. The course also introduces substation layouts and the interconnection of major equipment. Emphasis is placed on equipment identification, operating principles, safety, and maintenance fundamentals. Overall, the course builds a strong foundation for understanding substation equipment and its practical role in electrical power systems.