Analysis using virtual instrumentation of perturbations induced in the network to supply a consumer from a UPS

This paper presents the virtual instrument used to monitor and analyze the behavior of Uninterruptible Power Supplies (UPS) system. The monitoring system includes: Hall effect sensors, data acquisition board, the LabVIEW environment and PC host. The applications enable the equipment to perform the functions of digital scope and analyze the following parameters: harmonic content, total harmonic distortion THD, RMS value, positive peak value, negative peak value.