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generator-turbine-control-panel

As part of the total refurbishment, Sorensen Systems built and installed a new main generator/turbine control panel in the master
control room.

digital-excitation-control-systems

The refurbishment included two new digital excitation control systems and two new digital head conversion assemblies.

plc-control-panels

Two new turbine PLC control panels were built and installed along with two new cooling water system skids.



 

Micro Hydro Station Automation,
Turbine and Governor Conversion

When the Massachusetts Water Resources Authority (MWRA) determined that turbine generators at Wachusett Reservoir needed upgrading and refurbishment, Sorensen Systems was awarded the contract for the project. The two vertically oriented, full Kaplan type 1,600 KW generators with six adjustable runner blades and two 2,240 HP turbines had been in operation since 1969. The upgrade was necessary to integrate the turbine operation with a newly configured water supply system.

The hydroelectric facility, locally referred to as the Cosgrove Intake, regulates the flow of water from the Wachusett Reservoir into the Cosgrove Aqueduct, which is an important transmission leg in the supply of water to the Boston Metropolitan area. There are two sections, the North and South intakes, and both intakes include a hydraulic turbine and two bypass lines. Each intake has three channels with traveling water screens. Each intake also has an upper intake sluice gate and lower intake sluice gate that allow operational flexibility to draw water from different levels of the reservoir.

Hydroelectric Refurbishment

The engineers and technicians at Sorensen Systems provided design, manufacturing, installation supervision, commissioning, and training for the entire project, which included:

  • disassembly and refurbishment of the
    existing turbine generators

  • new static excitation systems

  • new turbine bearing cooling water systems

  • refurbished switchgear panels

  • new turbine control panels

  • new digital governor heads with the refurbished
    governor hydraulic pumping units

  • new station battery charging system.

Sorensen Systems has over 50 years experience with new installations, refurbishment projects and station automation for the hydroelectric, power generation, water and waste-water industries. It has established a reputation as a leader in the design and manufacture of electro-hydraulic governors, gate-operating systems, and hydraulic lubrication and bearing cooling units.

Sorensen Systems Design/Build

Its in-house staff of engineers and design technicians have extensive experience with applications ranging from turbine speed control to water level management. System design, fabrication, installation, start-up and field maintenance are provided for:

  • High and low pressure electro-hydraulic
    conversion systems

  • Remote gate positioning systems

  • Ball valve, butterfly valve and fixed cone
    operating assemblies and systems

  • Turbine lubrication and cooling systems

  • Crest, slide and roller gate control systems

  • Gas/steam turbine combined cycle
    diverter systems

  • Electro-hydraulic governor control systems

Full Service Project Engineering

From its 60,000 square foot engineering and manufacturing headquarters in Massachusetts, Sorensen Systems works closely with its customers and with any globally recognized hydraulic and electrical component manufacturer to provide full service project engineering from initial concept through commissioning. Its team of mechanical, electrical, hydraulic, electro-mechanical, and pneumatic engineers, support customers in the following ways:

  • Provide complete design documentation

  • Follow a compressed turn-around
    design-to-production schedule

  • Offer worldwide field assistance for on-site
    engineering of special applications reducing
    installation and commissioning costs

  • Offer customized testing procedures at our facility
    allowing the customer to put their equipment to
    work sooner


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Sorensen Systems

A Subsidiary of THG Corporation
70 Bearfoot Road
Northborough, MA 01532

T: 508-393-7660
F: 508-393-6042

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Northborough, MA 01532

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