LEARNING ROUTES
Electrical topics
Start with a question, follow the worked explanation, then open the relevant calculator. Each route keeps its assumptions and limits visible.
Three-phase voltage, current and neutral: a practical route
A three-phase answer depends on where voltage and current are measured. This route starts at the conductors and ends with the limits of the balanced model.
Explore topic →Transformer ratings, full-load current and measured loading
A transformer nameplate, a calculated full-load current and a measured loading percentage describe different things. Follow them in that order.
Explore topic →Voltage drop and conductor data: choose the right method
A voltage-drop result is only as useful as its conductor data and route assumptions. Choose a method that matches the information you actually have.
Explore topic →Looking for a specific calculation? Browse all calculators or see the full article library.