Kaplan turbines are reaction turbines in which water flows axially into the runner and exits along the blades in the same axial direction, converting hydraulic energy into mechanical energy. The runner consists of the runner body, blades, and draft tube cone. Compared to mixed-flow turbines, Kaplan turbines have fewer blades, and the blade axis is perpendicular to the turbine shaft.
Kaplan turbines are well suited for hydropower plants with low to medium head, typically ranging from 3m to 80m, and high flow rates. Under the same head conditions, Kaplan turbines have higher specific speeds compared to mixed-flow turbines.
Based on the blade mechanism, Kaplan turbines are classified into:
Scope of supply: 3 sets of Kaplan turbine-generator units
The units were successfully commissioned in March 2018. The full supply included turbines, generators, flywheels, hydraulic governors, and switchgear.
Scope of supply: 4 sets of Kaplan turbine-generator units
The units were successfully commissioned in May 2002. The complete supply included turbines, generators, governors, distribution cabinets, as well as installation and commissioning services.
Scope of supply: 4 sets of Kaplan turbine-generator units
The units were successfully commissioned in July 2023. The complete supply included turbines, generators, flywheels, hydraulic governors, and distribution cabinets.
Scope of supply: 4 sets of Kaplan turbine-generator units
The units were successfully commissioned in December 2019. The complete supply included turbines, generators, flywheels, hydraulic governors, distribution cabinets, as well as installation and commissioning services.
Scope of supply: 2 sets of Kaplan turbine-generator units
The units were successfully commissioned in May 2020. Scope of supply included turbines, generators, flywheels, hydraulic governors, and distribution cabinets.
Scope of supply: 3 sets of Kaplan turbine-generator units
The units were successfully commissioned in June 2018. The full order included turbines, generators, flywheels, governors, and distribution cabinets.
A Kaplan turbine is a propeller-type axial-flow turbine with adjustable blades, specifically designed for low-head, high-flow applications.
A Kaplan turbine consists of:
Water enters the scroll casing where pressure is maintained. It then passes through the guide vanes, which regulate flow and reduce turbulence. Next, the water reaches the runner blades, which adjust their pitch to optimize turbine performance. Finally, the water exits through the draft tube, where kinetic energy is converted into pressure energy. The rotation of the runner generates mechanical energy that can be converted to electricity.
Kaplan turbines are suitable for low-head, high-flow applications. They are usually applied in:
Large axial-flow turbines are specifically designed to achieve optimal performance at particular sites, offering long-term operational efficiency.
Their adjustable blades combined with an axial-flow design make them an ideal choice for environments characterized by low water levels but high flow rates, ensuring optimal performance in such settings.
When you purchase turbines from our company, we provide a complete set of installation drawings. If required, we also assist and guide you through the installation process.
Our expert team will support your hydropower projects with proven experience and technical expertise.
We develop, design and deliver turnkey hydroelectric power plant solutions with the right water turbine for hydroelectric generation
Learn More21+ years of experience
Power range: 50kW-30MW
Annual output: 150 units of 5,000 kW turbine generator sets
Annual output: 100 units of 200 kW turbine generator sets
