SCR controllers firing in phase-angle degrade the power factor while increasing harmonics and electrical noise. A poor power factor drives increased power generation, resulting in high energy costs and more CO 2emissions. Predictive load management eliminates these drawbacks, resulting in more effective motor performance through load-balancing and load-shedding strategies.
In a white paper released on its web site, Eurotherm explains how manufacturers can use zero-cross firing without any drawbacks. "Energy Cost Reduction through Load Balancing & Load Shedding" from the Leesburg, Va.-based controls maker, which can be downloaded without cost, explains how its EPower controller’s predictive load management function can help manufacturers reduce energy costs, lower operational expenses and get a cleaner and balanced power supply.