Submitted by scechowski on Mon, 12/10/2012 - 12:15
We never seriously considered line regen braking on our centrifuge systems (VFD-driven ac motors) because of initial cost. We dump the energy to choppers. We're being told that partly because of hybrid car advances and demands in industries with high energy consumption, it's become much more cost-effective.
While many of today's industrial plants are using soft-starters and drives to reduce operating costs, there is considerable confusion about how to properly protect these devices. How much can inadequate protection undermine the cost-cutting benefits of soft-starters and drives?