Hydroelectric Power Plant Operating Principles

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Generators in Hydroelectric Power Plants

Employing the principle of electromagnetic induction, the electric generator transforms the mechanical energy of a rotating turbine shaft into electric energy. Due to the generally lower rotational speed of water turbines, generators in hydroelectric power plants are typically larger than generators of the same output in thermal power plants.

Schematic diagram of a hydroelectric power plant.

Schematic diagram of a hydroelectric power plant.

 

Video: 3D model of a hydroelectric power plant.

Video: 3D model of a hydroelectric generator.

An underground powerhouse with a row of hydroelectric generators in New Zealand. (Source: © 3532studio / stock.adobe.com)
6 pictures
Generators in the Hoover Dam Powerplant on the border between Arizona and Nevada, USA. (Source: © James / stock.adobe.com)
Generators in the powerhouse of the Zeya hydroelectric power plant in Russia. (Source: © alexhitrov / stock.adobe.com)
Generator room of the Glen Canyon hydroelectric power plant in Arizona, USA. (Source: © travelview / stock.adobe.com)
6 pictures