The increased emphasis on energy efficiency, coupled with the expansion of new technologies in both power generation (wind, solar etc.) and conversion (high-frequency inverters, switch-mode power supplies etc.) has created a demand for new measuring instruments combining high accuracy with the versatility to handle multiple and widely varying inputs.

This article in Electronics Magazine describes how the Yokogawa WT1800 digital power analysers incorporates a number of innovative functions for electrical power and efficiency measurements in a range of industries from inverter and drive design to alternative energy systems.