Ivyland, PA – American Governor Company (AGC) was awarded a contract by Dewberry Inc. to refurbish a 10-year-old Digital Governor/Automatic Controls System for two 2.5 MW Kaplan turbine/generators and ancillary systems at Massachusetts Water Resources Authority‘s (MWRA) Cosgrove Station to achieve the functionality envisioned in the original specification. AGC will achieve two parallel and fully independent control systems within the existing common enclosure while reusing the existing hardware and all field wiring, to the greatest extent possible.
Three deficiencies in MWRA’s current execution of the control that will be rectified by this effort include replacement of the digital governor proportional valves and their feedback mechanisms, removal of all vestiges of the previous attempt to create Redundant PLC Operation and the creation of two independent control systems within the same enclosure, and creating a PLC program that meets MWRA requirements for reliability, functionality, remote reporting, information display and remote control. This project will be completed in March 2013.
About American Governor Company
American Governor Company provides fully engineered digital governor conversion systems for hydro plants, including PLC-based digital controls, electro-hydraulic valve manifolds, hydraulic power units, electronic feedback devices and unit/plant control and monitoring systems. Installation, start-up, commissioning and field training services are provided by our staff of experienced governor specialists and field service engineers. American Governor also provides full support for legacy governor systems, including a complete line of replacement parts for all types of Woodward governors and a growing inventory of new and reconditioned parts and assemblies for other OEM governors. American Governor offers Field Service, Training, Retrofit kits and Technical Support for legacy governors. The Training and Repair Facility near Stevens Point WI offers factory repair services for governor pumps and permanent magnet generators as well as our annual Governor School and twice yearly Focus Classes. American Governor has provided more than 600 digital governor upgrades and has supported over 1,500 hydropower plants in North America.