Transformer Magnetic Circuit Diagram Magnetic circuits used to be one of my least favorite types of problems on the electrical power PE exam. It seemed overly complicated and resources that taught this type of problem were hard to find without diving too far into the subject of physics, which is beyond what the PE exam […]
4 Wire High Leg Delta Transformer Connection
Click play to watch the video for this worked out problem: What’s in this Article? Click below to jump to any section: Introduction Solving for phase voltages Solving for center tapped voltage magnitudes Solving for center tapped voltage angles Solving for the high leg voltage method 1 Solving for the high leg voltage method 2 […]
Open Delta Transformer Connection
How much power can an open delta transformer deliver? How much power can an open delta deliver compared to a standard three phase delta transformer? Where does the power formula for the open delta transformer connection come from? What are the phasor diagrams for an open delta transformer? What about the current and voltages for […]



