Electrical Transformer Components | Free Online Course | Alison

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Electrical Engineering - Electrical Transformer Components

Learn about electrical transformer construction and components with this free online Electrical Engineering course!

Free Course
This free online Electrical Engineering course will teach you about electrical transformers, why we use them, and the features and functionality of their main components. Electrical transformers are an essential component in any electrical distribution system and are vital for proper energy transmission through an electrical grid. This free course uses detailed 3D models to teach you about an electrical transformers functions and components.
  • Duration

    1.5-3 Hours
  • Assessment

  • Certification

  • Responsive

  • Publisher

  • Accreditation






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Electrical transformers are a common site in any electrical distribution system. In order to understand how power is transmitted through an electrical grid, you will need to learn more about transformers. This free online course introduces you to all of an electrical transformer’s main components (core, windings etc.). The course shows you how a Buchholz relay works. You will learn about oil level measurements and how transformer temperature measurement works. The course then describes how silica gel breathers and tap changers work (on and off load).

This course will give you all the information you need to know about electrical transformers and can also be used later as a refresher course. Its an ideal course for anyone working/training in an electrical engineering or power engineering industry. Interactive 3D models are used extensively to show you exactly how each of the transformer parts work. The course is packed with 2D images, 2D animations and 3D animations. Written content has been read aloud so that you can 'learn on the go' without needing to watch the screen constantly. So, why wait? Start the course today and gain valuable knowledge on how electrical transformer components work!

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Learning Outcomes

Having completed this course you will be able to:

  • Identify all of an electrical transformer’s main components (core, windings etc.)
  • Explain how a Buchholz relay works
  • Describe how oil level measurement works
  • Describe how transformer temperature measurement works
  • Describe how silica gel breathers work
  • Explain how tap changers work (on and off load)
  • List what the most common transformer 'killers' are
  • Illustrate transformer maintenance tips


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