A synchronous generator is a type of electrical machine that converts mechanical energy into electrical energy using electromagnetic induction. It operates at a constant speed, synchronized with the frequency of the electrical grid. This means that the generator's rotor spins at a speed that matches the frequency of the alternating current (AC) it produces, ensuring stable and reliable power output. These generators are commonly used in power plants and industrial applications due to their efficiency and ability to maintain voltage levels. They can be driven by various energy sources, such as steam turbines, water turbines, or internal combustion engines, making them versatile in energy production.