Mechanical/Electrical/ Hydromechanical Equipment

BOKAhydro offers customers complete water-to-wire equipment packages from a single turbine to the full scope of supply. The final scope is according to the customer’s preference.

Sub-contracted supplies across Europe are subject to rigorous quality control and must meet the same standards as components produced at BOKAhydro.

Pelton turbines

Technical data:

  • Head up to 800 m
  • Output up to 20 MW

 

Our spectrum of Pelton turbines could be divided according to the following categorization:

  • Horizontal axis with 1 to 3 nozzles
  • Vertical axis with 3 to 6 nozzles pressure chamber design
  • Vertical axis with 3 to 6 nozzles with distributer
  • Inner or outer actuated nozzles
  • Optional galvanized or stainless steel casing and distributor

Francis turbines

Technical data:

  • Head up to 250 m
  • Output up to 10 MW

 

For wide head ranges and large flow volumes our Francis turbines can be divided:

  • Vertical; spiral casing
  • Vertical; open-fume
  • Horizontal; spiral casing
  • Double Francis
Francis turibnes 2
Kaplan turbines

Kaplan turbines

Technical data:

  • Head up to 20 m
  • Runner diameter up to 2500 mm

Our range of Kaplan turbine types for lower heads and larger flows can be divided:

  • Inox casing and covers a
  • Double and single regulated
  • Bulb and PIT arrangement
  • With reduction gear transmission
  • With PMG generators

Water turbines on potable water systems

Main requirements on hydro energy systems on potable water systems:

  • Inox casing and covers
  • Surfaces treatment contains harmless and chemically inert ingredients, so it is suitable for direct contact with food products
  • The coating must be certified by the Institute of Health protection to protect surfaces in contact with drinking water
  • Electric actuators only (oil-free)
  • Self-lubricating bushings (grease-free)
  • Bypass of the turbine unit (failure of the electrical network)
  • Bypass of hydropower plant
  • Plunger valves installed

Hydraulic and Digital governor

BOKAhydro calculates and designs hydraulic pack units, manufactured from reputable European suppliers.

The heart of Automatization system is Programmable Logic Controller. It gathers all necessary information and controls the process with a predefined program.

ComAp developed a single controller with PLC and all that periphery devices. It has remote access over internet, all the diagnostic, logger, Human Machine Interface, local and remote Scada system for Personal computers, smart phones and Internet browsers.

Accessories

Hydroelectric power is a facility strategically important for our society. With the desire to operate in all extreme and boundary conditions, we focus on every detail

in relatively complex system of technological processes. For this reason, we plan, assemble and test practically all components, and leave very little to coincidences in

operation during the lifetime of the power plant.

  • Spherical valves
  • Inlet pipes
  • Bypass systems
  • Pressure reduction valves
  • Flywheels incl. braking systems
  • Bridge cranes

Hydro Mechanical equipment

The concern for the environment, nature and ecology is, according to many beliefs, the most important issue on our planet.

The treatment of water is directly related to the lifetime of turbines, and so are the maintenance works on intake and mechanical as well as electrical equipment.

On the basis of the above arguments, we offer unique solutions:

  • Fish trails
  • Overflow systems for the requested biological minimum
  • Trashracks and trashracks cleaner
  • Flap gates, radial gate, sliding gates and bottom outlet gates
  • Valve chamber
  • Hydraulic or electric actuation systems

Vertical Francis turbine design

Turbines are designed and dimensioned in several stages; hydraulic design, design of turbine accessories, virtual 3D construction and implementation plan.