TRANSFORMERS – What They Are, How They Work, How To Size Them

Electrician U

February 10, 2020

Let’s open up a transformer and dig through it to see how they work. Transformers are extremely useful devices used in electrical systems to raise and lower voltage. They’re also used for isolation, typically in cleaning up power. They only exist in the world of Alternating Current however, so...

Episode 10 – What’s Inside A 3-way and 4-way Switch?

Electrician U

April 30, 2018

In this episode I take apart a 3-way and 4-way switch and talk about how they work on the inside

Episode 9 – What’s Inside A Breaker (How Do Electrical Breakers Work?)

Electrician U

April 27, 2018

This episode is all about breakers, from the outside-in.  I cover the differences between single-pole, two-pole, and 3-pole breakers. I talk about how a breaker is a simple spring-held mechanical switch that operates by an internal electromagnet.