They may be conceptually simple, but transformer specification holds a few pitfalls for the unwary. James Mousley of CEE Norm looks at some of the specification considerations.
Ask 100 people for their list of the ten most important electrical inventions, and I’d wager you’d get a broadly similar list. Doubtless television would be in there. Probably the telephone and radio, too. The more component savvy might offer up the thermionic valve. How many, though, would put the transformer on their list. Most likely, even if they acknowledge the work of Michael Faraday and his experiments on induction between coils of the wire in the 1830s, the transformer itself will be a sad omission from the list of greats. And yet, without it, the world today would be a very different place.