Electric actuators automate Sydney penstocks

摘要

An existing hydraulic actuation system has been replaced with advanced electric actuators from AUMA at Potts Hill Outlet Works in Sydney, Australia. The actuators automate three large penstocks that control the water flow from a set of three pipelines into Sydney's network of pipes and reservoirs. The installation is part of a major pipeline network operated by Sydney Water Corporation that handles approximately 80 percent of the city of Sydney's drinking water supply. The main reason for replacing hydraulic with electric actuation technology was great concern that the hydraulic oil might leak and mix with the drinking water.