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Substation Technician Fundamentals
Rating: 3.7 out of 5(9 ratings)
1,021 students

Substation Technician Fundamentals

Learn the Core Skills for Substation Operations, Safety, and Equipment Maintenance
Created byMike L
Last updated 7/2025
English

What you'll learn

  • How key substation components—like battery banks, bushings, CTs, and disconnect switches—work and how to inspect and maintain them
  • Principles of protective relays, including differential, distance, mechanical overcurrent, and directional protection
  • How to test current transformers (CTs) and ensure protection devices are operating correctly
  • Step-by-step understanding of relay isolation, control panels, and substation inspections
  • Insights into SF6 gas, transmission breakers, and motorized disconnect operations
  • The function and importance of Device 90 and other key automation systems in substations

Course content

5 sections20 lectures7h 2m total length
  • Introduction6:23

Requirements

  • Basic Knowledge of Substations

Description

Master Substation Operation & Maintenance: Become a Skilled Substation Technician

Are you an aspiring or entry-level technician looking to build a strong foundation in substation operations and maintenance? Do you want to understand the key components that keep electrical substations running safely and efficiently? Then this course is for you.


"Substation Technician Fundamentals: Operation and Maintenance" is designed to equip you with the essential technical knowledge needed to work confidently in high-voltage substations. Whether you’re beginning your journey in the utility industry or seeking to reinforce your on-the-job learning, this course covers critical devices, safety practices, and real-world procedures you'll encounter in the field.


In this course, you’ll learn how essential substation components such as battery banks, bushings, current transformers (CTs), and disconnect switches function, as well as how to properly inspect and maintain them to ensure reliable performance. You’ll explore the principles behind various types of protective relays, including differential, distance, mechanical overcurrent, and directional protection, and understand how these systems work together to protect electrical infrastructure.

We’ll guide you through the process of testing current transformers and checking the operation of protective devices to verify that the substation is functioning as intended. You’ll also gain a step-by-step understanding of relay isolation procedures, the role of control panels, and best practices for conducting thorough substation inspections.

The course provides valuable insights into the use of SF6 gas in high-voltage equipment, the operation of transmission breakers, and how motorized disconnect switches are controlled and maintained. Additionally, you'll learn about the function and importance of Device 90 and other key automation systems that play a vital role in modern substation operations.


Substations are the heart of electrical transmission and distribution systems. With this course, you’ll gain the clarity and confidence needed to safely maintain and operate substation equipment. The content is concise, practical, and based on real-world industry experience—ideal for anyone preparing for fieldwork or technical certification.


Join today and start mastering the fundamentals of substation operation and maintenance. Your journey to becoming a skilled substation technician starts here.

Who this course is for:

  • Apprentice substation technicians and electricians
  • Utility workers looking to transition into substation roles
  • Electrical engineering students interested in practical applications
  • Maintenance professionals seeking to understand substation infrastructure
  • Anyone working around high-voltage equipment who wants to stay safe and informed