A hydroelectric generator is a device that utilizes the energy of water flow to convert it into electrical energy, and is usually installed in waters such as rivers, reservoirs or dams. It utilizes the kinetic energy of the water flow to drive the rotor of the generator to rotate, generating electrical energy through electromagnetic induction. Hydroelectric generators are an environmentally friendly, renewable energy source with stable power generation performance and long service life, and are widely used around the globe.