Making sense of the vector group of transformer basics
In case you've ever invested time looking at the technical nameplate on the piece of high-voltage gear, you've likely spotted the cryptic code that defines the vector group of transformer units. In order to the uninitiated, these strings of letters and numbers such as "Dyn11" or "Ynd1" look like a cat walked across a keyboard, but they're actually the secret handshake of the electrical planet. They show exactly how the inner windings are connected up and, more importantly, how the phase of the particular electricity shifts because it passes through one side towards the other. ...