What are the classification of hydroelectric power station according to its head?
Hydropower plants can be classified in three categories according to operation and type of flow: Run-of-river (RoR), Small and micro hydropower utilizes water that runs of a river and avoids big environmental impacts. Pumped storage hydro power plants (HPPs) work as energy buffer and do not produce net energy.
What are the classifications of hydro electric power projects?
Apart from above classification, hydroelectric power plants can be classified, on the basis of installed capacity, as large, medium, small, mini, and micro hydro power plants. Generally the mini, micro, and pico hydro come under the subcategory of small hydro plants.
What are the three parts of a hydropower station?
A typical hydroelectric plant is a system with three parts: a power plant where the electricity is produced, a dam that can be opened or closed to control water flow, and a reservoir where water is stored. The water behind the dam flows through an intake and pushes against blades in a turbine, causing them to turn.
What is the basic principle of hydro electric power?
The basic principle of hydropower is using water to drive turbines. Hydropower plants consist of two basic configurations: with dams and reservoirs, or without. Hydropower dams with a large reservoir can store water over short or long periods to meet peak demand.
What is run off river type hydro electric power plant?
Run-of-the-river hydroelectricity is a type of hydroelectric generation whereby the natural flow and elevation drop of a river are used to generate electricity.
Which generator is used in hydro power plant?
synchronous generator is selected for hydropower plant. Stator Core is built up of laminations, using 0.5 (or) 0.4 mm thick, dynamo sheet steel, with low specific loss. Laminations are insulated from each other by providing a special vanish on both sides of laminations.
Which turbine is used for high head?
|Hydropower Turbine Type||Typical Site Characteristics|
|Pelton/Turgo turbine||High heads (greater than 25 metres) Lower flows (0.01 m3/s – 0.5 m3/s)|
|Waterwheels||Low heads (1 – 5 metres) – though turbines often more appropriate for higher heads Medium flows (0.3 – 1.5 m3/s)|
What are four types of turbines?
While turbines can be classed as either impulse or reaction according to the way they function, there are four broad types of turbines categorized according to the fluid that supplies the driving force: steam, gas, water, or wind.
Where low head is available is used?
Low Head. Low head dams are usually classified as systems with head differences of around 10 meters or less. These low head hydro turbines are generally used in facilities such as run-of-the-river systems where there is a flowing river with little elevation change.