Electrical signals quality measuring device for three-phase network, measures quality of three-phase signals associated with voltage and current signals and displays instantaneous values of signals on screen

摘要

The device having the voltage and current transducers (SV,SI), a personal computer (PC) and an adapted data acquisition card (ADA), measures the quality of three phase signals associated with voltage and current signals of three phase electrical network. The instantaneous values of the signals and the network frequency are displayed on the PC according to changes in measurement, with precision of 0.01%. An independent claim is also included for electrical signals quality measuring method.