EMA’s Cortland New York service facility was recently called to look at a 1000 horsepower load commutated Ross Hill Drive (LCI). These drives require a special motor, which has a salient pole or fixed field rotor to operate.
A number of companies have pump controls on the market. We’ve designed, installed, and worked on many of them over the years, ranging from irrigation systems to waste water facilities to HVAC water pumps. VFD s have been routinely applied to pumps both for saving energy, and for offering better process control In the past, you commonly sold a drive, and a pump controller, but in recent times, the pump controller has become part of the drive package.
Variable Frequency Drives (VFD) have long been recognized as a viable way to reduce the energy consumed by 3 phase electric motors. Despite the proven history of this, many plant engineers and building operators have never taken the time to fully appreciate the tremendous cost savings that are possible.
John Maxwell is a noted author and a highly regarded leadership guru.. We’re honored to present a short but insightful leadership article that John has been kind enough to allow us to use.