To minimise losses, reduce energy costs and enhance control, sea food company Selsea Fish & Lobster has installed Parker Hannifin’s AC30 Variable Speed Drives (VSDs). The unusual application centres on keeping lobsters and crabs fresh by pumping seawater over them.
AC30V drives allow the matching of the speed of pumps and fans to process demands ensuring that the motor always operates at the optimal speed to deliver just the right amount of air or fluid. This can result in significant energy savings – often as much as 50%, with just a 20% reduction in speed. On Selsea’s previous system, the drives for the pumps were operating direct on line and at full speed all the time, regardless of application needs meaning the plant was consuming excessive amounts of electricity and creating unnecessary CO2 emissions.
AC30V drives also help improve service life by operating at an appropriate speed. This can result in significant reductions in maintenance and repair bills in the long term as well as a noticeable reduction in noise pollution. Also, by employing Parker’s AC30 Remote Monitoring System, data collected by the drives is accessible to the customer in real time via the cloud for convenient remote monitoring out of factory hours.
“The old drivers were unable to sense changes in water levels or whether the pumps had tripped,” said Guy Pender, Software Engineer at Parker Hannifin. “This caused Selsea to lose large quantities of lobsters and crabs. A more intelligent system was needed so that physical checks were no longer required every few hours, even at weekends when the factory was closed.”