Schaffner EMC presents PQS3, an update to their Power Quality Simulation tool that allows planners, consultants and application engineers to model and simulate low-voltage 3-phase network topologies. The online tool allows users to simulate power networks and receive rapid answers to power quality issues. Drop-down menus and fill-in-the-blanks it easy to use, and upgrades include active filter simulation, engine power and accuracy enhancements and refreshed GUI design. Users can access the newly updated Power Quality Simulator at https://pqs.schaffner.com/.