World power systems and watt kva conversion

These links should come in handy if you’re travelling or working on a project that involves calculations of voltage, amperes, watts and kVAs etc.:

The last one is really just a revision of what you were taught in school, but the first has some nifty stuff about the types of power connectors, voltages and frequencies used in different countries. They were both quite useful when deciding which generator and UPSs we required for the new office.