Notable Awards 

  St. Lawrence Seaway Management Corporation – Lock 4
St. Lawrence Seaway Management Corporation – Lock 4

Ivyland, PA – American Governor Company (AGC) was chosen to provide governor re-retrofits for the units in service at the Lock 4 Hydroelectric Generating Station. The St. Lawrence Seaway Management Corporation (SLSMC) owns and operates this hydro plant located at the base of Lock 4 on the Welland Canal, in St. Catharines, Ontario.

The Lock 4 Powerhouse contains two (2) horizontal Francis turbines that drive 5MW Generators. The machines were originally furnished with Woodward Gateshaft Governors, that had been converted to high pressure and PLC controllers in 2002.


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.

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