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  New Brunswick Power – Mactaquac
New Brunswick Power – Mactaquac

Ivyland, PA – American Governor Company (AGC) has been awarded a contract by New Brunswick Power to supply Upgrade Kits very similar to the equipment provided for the Beechwood retrofits. AGC will provide all equipment necessary for governor conversion to PLC control, including all necessary terminal blocks, relays, wire markers, etc. for a complete and finished installation. Presently, Mactaquac’s power plant has six Kaplan Turbines, these units were provided with Woodward Analog Electric Governors in 1966 and 1977.

American Governor Company will develop a site design for retrofitting the existing equipment and design pre-wired panels to be inserted into the existing cabinets. Local 15 inch HMI will be provided for maintenance and display in addition to new panel instruments for Blade Position, Megawatt, Tachometer, and Dual LED Gate Limit/Gate Position. The existing Distributing Valve will be converted to EHI Pilot Stage control and the existing Blade Angle and Gate Position Feedback devices will be replaced. AGC will also develop all Unit Control and HMI software and governor & HMI software to provide Index Step Testing functionality.

Mactaquac Dam is an embankment dam used to generate hydroelectricity in Mactaquac, New Brunswick. It dams the waters of the Saint John River and is operated by NB Power with a capacity to generate 670 megawatts of electricity from 6 turbines: this represents twenty (20) percent of New Brunswick’s power demand. The dam and power house are located approximately 19 km (12 mi) upstream from the city of Fredericton, NB.

Delivery of the contracted equipment is scheduled for just after the US’s Labor Day holiday with installation and start-up to be completed by Halloween, October 31, 2018.


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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